Commit Graph

651 Commits

Author SHA1 Message Date
Tomasz Zawadzki
5bf2973e9f lib/event: remove per core init/deinit API from governor
There is no explicit need for the spdk governors initialization
to occur on per core basis.

This implementation detail for dpdk_governor is now hidden
in the init/deinit calls. There is no recourse when failing
deinit for a certain core, so ignore the return code.
Changed return type for deinit in governor and scheduler to void.

While here modified the callbacks for scheduler to no
longer require passing currently selected governor as an argument.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I7f0b7a09aa7f5d12ae47fca25186faeedac31a95
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8791
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@gmail.com>
2021-08-31 08:39:55 +00:00
Tomasz Zawadzki
a7b15178c2 lib/event: do not set interrupt mode when eventfd is not supported
spdk_reactor_set_interrupt_mode() writes/reads from fds created during
reactor_interrupt_init(). Since spdk_fd_group_create() depends
on eventfd, this will not work for systems that do not have it.

reactor_interrupt_init() handled lack of support for eventfd correctly,
while spdk_reactor_set_interrupt_mode() did not check for it.

Reported-by: Nick Connolly <nick.connolly@mayadata.io>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I5181d436636c55cca3a06b1947e944502a9204ce
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9131
Reviewed-by: Nick Connolly <nick.connolly@mayadata.io>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-08-13 07:21:33 +00:00
Richael Zhuang
e258fe53a1 lib/event: add in_interrupt in rpc
add in_interrupt in framework_get_reactors.

Change-Id: I7137aa604129cfd26acd2dec4ae9ca545c7e4348
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8552
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2021-08-09 08:40:25 +00:00
Alexey Marchuk
8c22b0ab1c event: Add parsing of env_context option
For some reason we didn't parse this cli parameter

Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Change-Id: Ic046cac637c5b7c4f52030b0b025c3192ca3fe0b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8779
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: <dongx.yi@intel.com>
2021-07-27 13:43:25 +00:00
Tomasz Zawadzki
8e649e83b2 lib/event: remove get/enable/disable turbo API from governor
In rte_power all that enabling/disabling turbo does is allows
for additional entry in frequency array for particular core.

Instead of exposing this API through spdk governor,
just make sure that dpdk_governor enables turbo by default.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I994b326a57c01889bccea26635753c56637259d2
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8789
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
12fcf7e1d5 lib/event: remove get/set_core_freqs API from governor
Those calls went unused, in favor or much more useful
up/down/min/max variants.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I432896196a1a6edfc6799c8658df49567f73d457
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8788
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
7bf66ff5ac lib/event: remove fields from spdk_governor_capabilities
The spdk_governor_capabilities added lots of capabilities
which went unused, suposedly to mark which callbacks
a governor had implemented.

This made little sense, since capabilities are per core and
not implmenting this APIs made little sense.
With this patch spdk_governor_capabilities is brought in
line with rte_power_core_capabilities.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I85296fce2999cb41957162b63ee13d86a0be919f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8787
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-07-19 08:05:19 +00:00
Krzysztof Karas
ae74e70eff lib/event: remove _spdk_scheduler_disable()
Remove _spdk_scheduler_disable() to avoid confusion as there is
no spdk_scheduler_enable function. Since spdk_scheduler_disable
sets scheduler period to 0, use spdk_scheduler_period_set(0) instead.

Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I4f1390a635f80e8b92775aa4be2e37f5b95467f8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7448
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
fba4a97dec lib/event: refactor managing core_info thread allocation
The size of the core_info->threads will always be equal
to reactor thread_count, there is no need to count it
separately.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Icfa84606bd29d7766738eb2053362a20d78c23af
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8733
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
cf155f23b0 lib/event: refactor _reactors_scheduler_update_core_mode()
Replaced multiple functions calls to _reactors_scheduler_update_core_mode(),
with a for loop.

Since changing reactor to interrupt mode is rare operation, most of the
time we ended up with unnecessarily long callstack.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I1c7858653be9e2256943c1da5a27001be41682b6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8714
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
cff96883fc lib/event: remove is_scheduling flag from reactor
There is only one g_scheduling_reactor (main core), the is_scheduling
flag for it is used to block starting new gather_metrics before
previous one is finished.

Meanwhile is_scheduling flag on other reactors was used to block
destroying lw_threads while scheduling happens. It was only needed
because scheduler interacted with the same lw_thread pointers as
each reactor. Previous patch removed this dependency, instead
spdk_thread ids is used. If an spdk_thread is destroyed,
while scheduling _threads_reschedule_thread() handles it.

It is no longer required to block destruction of lw_threads
based on this flag.

Instead of using the main core reactor flag, a g_scheduling_in_progress
is introduced.

Removed _spdk_get_scheduling_reactor() and instead shared the value
of g_scheduling_in_progress between reactor.c and app.c.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ica57326a552477add522174cc3e96b3bab918350
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8732
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
b74b6133fa lib/event: remove scheduler dependency on lw_thread
Removing dependency on schedulers to directly modify
lw_thread field structures will help making schedulers
truly plugable.

Instead of using lw_thread, new structure is created
that holds copy of stats and refer to the thread by
spdk_thread id.

As an added benefit of not changing lw_thread directly,
we won't run into issue of balancing function changing it
while other reactor removes and frees it.

In the future an API will be added for scheduler to call
in order to move the thread directly. Rather than for
event framework to rely on modified core_info/thread_info
structure.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I8f85bb8dc080fd13b78b07ee9ef8e8be7051659b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8411
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-07-19 08:05:19 +00:00
Tomasz Zawadzki
66a5b406cb scheduler_dynamic: lower the idle thread limit
Limit of 50% to mark thread as active or idle
didn't allow for multiple active threads to be placed
on single core.

Lowering the limit to 20% will allow that and force
more threads to be actively balanced.

Removing the limit was considered, but that would
cause too much thread moves when a thread with load
in single digits increased briefly. Either
due to actually doing any operation or placement
of other threads on the same core.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I5f8c9ff15461feb71a2d82853cfe048e412ba921
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8289
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-07-19 08:05:19 +00:00
GangCao
e8cd34ae9f App: update the usage function for the core list usage
In this case, user could specify the core number like:

-m [0,1,10] besides the core mask like -m 0xF

Change-Id: I48621c5a84e5436deae07101591d0ef85b1e129e
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8746
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
2021-07-15 07:16:16 +00:00
Tomasz Zawadzki
57a2f03eb6 lib/app: only print cpumask for thread within app core mask
For cases where cpumask for a thread was not set,
all bits were turned on for whole length of cpuset structure.

This resulted in JSON RPC reponses with way too long cpumask
for what is useful.

Now the response is limited to the applications core mask,
as that makes sense so long as number of cores cannot change.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ib5cf271d3b219ba679f1abe498516796693a87dd
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8288
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-07-12 21:58:56 +00:00
Tomasz Zawadzki
fe2f80961c scheduler_dynamic: start core selection from first core
The round-robin logic is no longer necessary to spread
the threads around the cores. Starting from core other
than first is even counter-productive to bunching up
threads.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I5fcee2bacc2d0b4af26336caf381ed954814d731
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8085
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-07-12 21:58:56 +00:00
Tomasz Zawadzki
a5999f637a scheduler_dynamic: prioritize lowest lcore id for active threads
Before this patch _find_optimal_core() returned
1) any core that could fit the thread
2) if current core was over the limit, the least busy core
3) current core if no better candidate was found

Combined with _get_next_target_core() round-robining
the first core to consider, resulted in threads being
unnecessarily spread over the cores.

This patch only places threads on lower lcore id,
or when current core is over limit then any core that can fit it.

Next patch will remove round-robin logic to always start with
lowest lcore id.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I54e373d3ca02a5633607d22978305baa1142f8bd
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8112
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-07-12 21:58:56 +00:00
Tomasz Zawadzki
d2ed0f45e7 scheduler_dynamic: scale up core load when moving thread
Before this patch the idle time of a core was increased
by the amount of busy time of thread that was moved out.
No assumption was made as to how the remaining threads,
would behave during next scheduling period.

This approach is fine, as over multiple scheduling periods
we'd arrive at a point where threads could do no more work
or all cores would be busy.

Yet this requires multiple scheduling periods to sort out
the threads.
Later in the series core_load will be used to determine,
when to start moving threads out of the core. So changing
this assumption will allow for faster responses to thread load,
at cost of sometimes spreading threads too much briefly.

With this patch, we are assuming that threads remaining
on the core will do proportionally the same amount of work
during next scheduling period.

See an example illustrating the change:

Before moving Thread1
Thread1	Busy 80		Idle 20		Load 80%
Thread2	Busy 60		Idle 40		Load 60%
Core	Busy 140	Idle 60		Load 70%

After moving Thread1 out (original code)
Core	Busy 140-80=60	Idle 60+80=140	Load 30%

After moving Thread1 out (this patch)
Core	Busy 140-80=60	Idle 60-20=40	Load 60%

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I1f347983449b2fde476dab360c4df689965ca3ea
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8279
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-07-12 21:58:56 +00:00
Tomasz Zawadzki
11c9b3960b scheduler_dynamic: move thread to least busy core
In cases when all cores are already doing too much work
to fit a thread, active threads should still be balanced
over all cores.

When current core is overloaded, place the thread
on another that is less busy.

The core limit is set to 95% to catch only ones that are
fully busy.
Decreasing that value would make spreading out the threads
move aggressive.

Changed thread load in one of the unit tests to reflect the
95% limit.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I3b3bc5f7fbd22725441fa811d61446950000cc46
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8113
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-07-12 21:58:56 +00:00
Tomasz Zawadzki
127fc0d0c3 scheduler_dynamic: consider any core for the thread
Previously core load was only considered for main lcore.
Other cores were used based on cpumask only.

Once an active thread was placed on core it remained there
until idle. If _get_next_target_core() looped around,
the core might receive another active thread.

This patch makes the core load matter for placement of any thread.
As of this patch if no core can fit a thread it will remain there.
Later in the series least busy core will be used to balance
threads when every core is already busy.

Modified the functional test that depended on always selecting
consecutive core, even if 'current' one fit the bill.
Later in the series the round robin logic for core selection
is removed all together.

Fixed typo in test while here.

Note: _can_core_fit_thread() intentionally does not check
core->interrupt_mode and uses tsc. That flag is only updated
at the end of balancing right now. Meanwhile tsc is updated
one first thread moved to the core, so it is no longer
considered in interrupt mode.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I95f58c94e3f5ae8a468723d1dd6e53b0e417dcc3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8069
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-06-28 16:18:19 +00:00
Tomasz Zawadzki
2d79bf58fb scheduler_dynamic: balance idle threads in separate pass
Idle threads are always moved to main core, there are no
other considations. Doing it as separate first pass,
allows to have the core stats be up to date for second
pass for active threads.

Core load stats will be used later in the series to determine
optimal target core for an active thread.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6a9bc11b86e954e461f7badebf3a6e4d1718f63c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8067
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-06-28 16:18:19 +00:00
Tomasz Zawadzki
e209981dd1 scheduler_dynamic: add _foreach_thread iterator
This will be needed when doing multiple passes over
all threads. See next patch.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I4e9c749d69314fc268cbcb9334862392100b651e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8066
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-06-28 16:18:19 +00:00
Tomasz Zawadzki
60b655aa91 scheduler_dynamic: simplify thread balancing logic
When picking a path to go down with a thread,
conditions unnecessarily piled up.

Instead do it either of two ways:
- move idle threads to main core
- find best core for active threads and move them there

There is no need to worry about cpumask of the thread,
since _find_optimal_core() will always return a core
within the cpumask.

If the found core is the same one as the current,
_move_thread() won't perform any action.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I0f4782766c15c86b5db0c970cfc9547058845b2a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8065
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-06-28 16:18:19 +00:00
Maciej Szwed
76b7210226 scheduler_dynamic: refactor out searching for target core
Refactors logic for finding the optimal core for a thread
to single function.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ifc2b09acb6f698640ce9602fec4f567eb32b79fa
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6732
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-06-28 16:18:19 +00:00
Maciej Szwed
62491a6716 scheduler_dynamic: refactor out moving thread between cores
Refactor all thread moves and core stats updates to single function.

At this time in series only tsc of main core was modified and
only idle tsc of main core was used. Main core would be either
the destination core or the source core. In both cases, the idle
time for main core had to be updated.

This patch generalizes this logic to always move the execution
time from source core to destination core.
As a byproduct cores besides main core have the stats updated,
which will be useful later in the series. Once core load will
be the deciding factor for choosing a core.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I57564e8b2632f919869d74e8f10b01fb3dda3be9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6658
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
2021-06-28 16:18:19 +00:00
Jiewei Ke
5fc0475c14 thread: Make the definition of struct spdk_io_channel private
Move the definition of structure spdk_io_channel into
lib/thread/thread_internal.h, so we don't have to update SO_VER for
other libraries in future when we need to change the internal details on
the structure.

Signed-off-by: Jiewei Ke <jiewei@smartx.com>
Change-Id: I3d2ca7a8737972e0b33ce92e464da42c48f89dec
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8189
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-06-25 05:01:45 +00:00
Tomasz Zawadzki
286a43f512 scheduler_dynamic: move busy_threads_present
At this time only main lcore frequency is changed,
depending on its load either up or down.
Exception is when at least a single busy thread is present
on non-g_main_lcore. Then the main lcore frequency is set
to the maximum possible.

This patch moves when that is determined, from 'moving'
logic to one that sets reactors to interrupt mode.
If at least one thread is present on non-g_main_lcore,
it has to be busy. Otherwise it would be placed on main lcore.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I2900598afe53fb609e1f06a60d5245f74511e1c3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8050
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
5e4fbe7364 lib/event: remove pending_threads_count from core_info
This field was only used to keep track of number of threads
that will be present on a core after scheduler moves.

It was used only internally within scheduler_dynamic.
Event framework has no need to keep such field in core_info.

Instead added field in cores_stats internal to scheduler_dynamic.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I3ce74d4a25eac81e58da8705a1c4553730fc1e57
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8049
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-06-14 08:44:39 +00:00
Maciej Szwed
4324834113 scheduler_dynamic: add core_stats
Added core_stats structure that will hold stats modified
during balancing.

Further patches will modify the values in this structure,
to for example judge how much execution time a core
has left.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ib8e611e36642c4543b5cb43bc2695c613d38f0fc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6657
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
abbfa1a5d1 lib/event: calculate reactor tsc from last scheduling period
This patch expands spdk_scheduler_core_info with two new
fields that will contain core stats only from last scheduling
period.

This will make sure that schedulers do not have to keep track
and calculate this value on their own.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I3aa7dfa6a60c1d14d95a0e684e84c2e83f0a4496
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8048
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
da11c9d2a2 lib/event: fix refreshing tsc_last when returning to poll mode
(a5ad0f80) lib/event: update reactor tsc_last going poll mode
Patch above updated the tsc_last at the very end of changing
interrupt mode of the reactor.
The flow for turning from interrupt mode to poll mode is
first to send an event to the target lcore, then to iterate
over all reactors updating notify_cpuset on each.

Previous patch updated the tsc_last after notify_cpuset was
updated, meanwhile the threads could already been put on it.

This patch moves it immidietly to the point of changing
the in_interrupt state.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6aea252016f4706369b8b597b765593bc6edca3b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8111
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
e837ba3bde lib/event: rename core_busy/idle_tsc to total_busy/idle_tsc
Renamed core_busy_tsc and core_idle_tsc to better
describe that they contain particular core stats for
its whole lifetime.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6f16b2b0a162aad8fbaf18f549fc50a2372b920b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8047
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
902c9e4de7 lib/event: remove new_lcore from lw_thread
There is no need to keep new_lcore field.

lcore value is enough to determine the target core.
Meanwhile _threads_reschedule() can see if the target
core matches the one from core_info.

Removed _spdk_lw_thread_set_core() since it did not
serve much purpose.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I82c7cfebf1107b4a55b2af9b891052084a788907
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8046
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
18667806ca lib/event: update lw_thread->lcore after thread move
lw_thread->lcore was set during gather_metrics,
rather than just after the thread reschedule.
This patch just moves it to the right place.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I0477830902f68102e4e4f0ffc9359bd004a8ad42
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7961
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
d9f5da13e4 lib/event: change last_stats to only describe last scheduling period
So far the schedulers had to calculate the diff of
current_stats - last_stats on their own to get tsc
from last scheduling period.

Renamed the current_stats to total_stats, but kept the meaning
as stats describing tsc for lifetime of a thread.

Instead change the meaning of the last_stats to describe
the tsc of only last scheduling period and change its name
to current_stats.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I1a165ff7c1afe659b432c3127a351a96878d1f3d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7843
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-06-14 08:44:39 +00:00
Tomasz Zawadzki
47a6578ee5 lib/event: calculate last_stats in event framework
Rather than to rely on schedulers to access and modify
last_stats values over multiple scheduling periods, move that
operation to event framework.

Providing this to the schedulers in generic manner is better
than enforcing that each scheduler has to keep track of this
data on their own.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Icaf3b4af80d86fafaddf328fd230db9743d21ab5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7971
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-06-04 19:58:24 +00:00
Tomasz Zawadzki
3db73426f2 lib/event: update current_stats at the time of thread reschedule
_reactor_schedule_thread() zeroes out the lw_thread on move.

To properly calculate thread stats since the move,
save them right after reschedule.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I44cc3b5907adda35b3117c2dd7268dc813d59853
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7919
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-05-28 08:13:48 +00:00
Tomasz Zawadzki
e0d448e7f6 lib/event: remove snapshot_stats
spdk_thread keeps track of tsc from its whole lifetime,
those can be requested with spdk_thread_get_stats() at any time.

spdk_lw_thread uses stats from above and keeps track of two points in time:
- current_stats reflecting stats at the time of gather_metrics stage
- last_stats reflecting stats from previous gather_metrics stage

1)
Before this patch current_stats were duplicated in snapshot_stats.
There is no need for that so now they are removed.

2)
Removed _spdk_lw_thread_get_current_stats() since it would be copying
current_stats to current_stats, thus not perform any action.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I5e5d4039cd0f7cc10ba150a3d915b90ec96589d7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7842
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-05-28 08:13:48 +00:00
Tomasz Zawadzki
0598e484d7 lib/event: set thread for each event executed
Whenever an event executes, it might change the currently
set thread or reset it to NULL.
To prevent it from affecting other events, set the current
thread each time an event executes.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6f1e7f8b7acab25353b4782058e87a9e01aab2c8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8045
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-05-28 08:13:48 +00:00
Tomasz Zawadzki
a4bf3e1099 scheduler_dynamic: exit early from _get_thread_load()
_get_thread_load() is function used to determine
the load of a thread based on relation of busy/idle tsc
from previous scheduling period.

In order to avoid division by 0 calculating the percentage,
we can simply exit early determining that thread was not
doing any work.

Having this check here will make sure that no matter
the changes in event framework, scheduler dynamic will work.

Removed the place that updated last_stats if they weren't
yet updated at least once (first scheduling period iteration).
In this case after change to _get_thread_load() will be the same,
as only the latest iteration will be used to calculate thread load.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I75f0f12f024675f2473a26e30596d6eb28093d46
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7917
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-05-28 08:13:48 +00:00
Ben Walker
dde419084b event: Move json config loading to init
Loading subsystems and restoring state from a JSON config file is useful
outside of the SPDK application framework, so move it to lib/init.

Change-Id: I7dd3ceace2e7b1b28eef83c91ce6a4eedc85740e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6645
Reviewed-by: Tom Nabarro <tom.nabarro@outlook.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-05-26 09:13:34 +00:00
Ben Walker
9f62796127 event: Move RPC server initialization to init
I'm not sure whether this should go into lib/init or to lib/rpc
directly, but I've chosen lib/init for now.

This is to support applications that want to run the SPDK JSON
RPC server, but aren't using the SPDK application framework.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I79ca39aa0ca6e1a3a6905b0bf73e6cc99b086e55
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6644
Reviewed-by: Tom Nabarro <tom.nabarro@outlook.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-05-26 09:13:34 +00:00
Ben Walker
dc9374dd2f init: Declare a formal public API
The functions to initialize the SPDK subsystems or tear them down
was previously an internal-only API. Make it public for use by
applications that aren't leverage SPDK's application framework.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I2ebfd020e6fa4c1947fa1c1a2ac509ce9b0242f8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6643
Reviewed-by: Tom Nabarro <tom.nabarro@outlook.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-05-26 09:13:34 +00:00
Tomasz Zawadzki
e65310624b lib/event: accumulate idle_tsc when reactor has no threads
Before this patch idle_tsc was sum of all idle tsc of all
threads running on a reactor.

There are cases when no threads are present on the reactor,
and _reactor_run() spins doing nothing.

To give more accurate representation of the reactors state,
the idle_tsc now adds time spent doing idle spinning.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: If797b2a03507d17b07367d56d5f6c40cefbbbd49
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7900
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-05-25 07:11:53 +00:00
Tomasz Zawadzki
a5ad0f8051 lib/event: update reactor tsc_last going poll mode
Disabling interrupt mode on reactor now updates the tsc_last
to current time. So any further tsc caulations will not account
for the time when reactor was in interrupt mode.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I56fb8a738eea60ee5de3b49d586f7cb228b54510
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7901
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
2021-05-25 07:11:53 +00:00
Tomasz Zawadzki
7438c388a0 lib/event: fix tsc_last for first thread on reactor
tsc_last value is used to update thread stats
during _reactor_run(). See:
spdk_thread_poll(thread, 0, reactor->tsc_last);

If no threads were present on the reactor,
this value got outdated and resulted in
adding time reactor spent with no threads to
stats of the first thread placed on that reactor.

This patch fixes thread stats by making sure
that argument to spdk_thread_poll() is up to date.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I0c35fdba1b63b6ee19a5a2b34751090839cb2438
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7845
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2021-05-25 07:11:53 +00:00
Ben Walker
af935f768e event: Shift subsystem initialization code to a separate library
This is useful for applications even if they elect not to use the SPDK
event framework.

This doesn't shift everything in one go - just the subsystem
initialization logic. Configuration file loading also needs to move
in a separate patch later.

Change-Id: Id419df1045442d416650ed90e5ee78adfdd623d7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6641
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-05-24 10:12:50 +00:00
Richael Zhuang
c07a6a949b event/reactor: fix bug when showing core state
It should print "intr" when target->in_interrupt==1.

Change-Id: I74479da1dc66d937899fdf5c619cdf1a09951918
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7857
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2021-05-18 12:44:02 +00:00
Shuhei Matsumoto
bd2fae2f0e thread: Change remaining direct accesses to io_channel outside lib/thread to helper functions
This is the same effort as spdk_poller.

The following patches will move the definition of struct spdk_thread and
enum spdk_thread_state from include/spdk_internal/thread.h to
lib/thread/thread.c.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I7f7bdfdd7a7b1b834d16d79638a4fd2d63e9daf6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7800
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2021-05-13 10:03:44 +00:00
Shuhei Matsumoto
1aec9334d9 thread: Change direct accesses to poller outside lib/thread to helper functions
Most accesses to the struct spdk_poller outside lib/thread have been
done via functions but a few direct accesses remain.

Change these to indirect accesses by addinng a few helper functions
as SPDK internal APIs.

Add spdk_poller_get_name() to get the name of the poller.

Remove spdk_poller_state_str() and add spdk_poller_get_state_str().
Exposing enum spdk_poller_state outside lib/thread is not really
necessary.

This removal requires us to update major SO version.

Add spdk_poller_get_period_ticks() to get the period ticks of the
poller.

Add struct spdk_poller_stats and spdk_poller_get_stats() to get
the stats of the poller.

The next patch will move the definition of struct spdk_poller and
enum spdk_poller_state from include/spdk_internal/thread.h to
lib/thread/thread.c.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id597dae074a15fcd8af09fd9d416a22ce2f403c3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7798
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2021-05-13 10:03:44 +00:00
Shuhei Matsumoto
9ff6238b88 event/scheduler: Include not spdk_internal/thread.h but spdk/thread.h
It is better if the internal of poller or thread is not accessed
outside lib/thread.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I80d488a111fd9a67a0da32d1e63695ce5a6bcb4c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7776
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-05-13 10:03:44 +00:00
Shuhei Matsumoto
cd83ea4a6d thread: Add SPDK internal APIs spdk_thread_get_first/next_active/timed/paused_poller()
The following patches will introduce red black tree to manage
timed pollers efficiently but it will be based on macros available only
in lib/thread/thread.c. Hence then it will be difficult to expose the
internal of timed pollers tree outside the file. On the other hand,
we do not want to include JSON into the file.

Hence add a few SPDK internal APIs to iterate pollers list transparently.

For spdk_thread_get_next_active/timed/pause_poller(), we omit the parameter
thread and get it internally from poller->thread even if the names include
the term "thread". This will be slightly cleaner.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I000801a2e4dc42fa79801a2fd6f2b06e1b769c88
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7717
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-05-13 10:03:44 +00:00
yidong0635
40549bb48e log_rpc: Unify codes in end path.
Unify the end path, and remove duplicate codes.

Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: Ie36cb2182b2b0b23f36670780b6e7af3652dc94b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7520
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2021-05-05 13:26:06 +00:00
Liu Xiaodong
6c9b7d0896 reactor: call callback if no need to set intr
When do spdk_reactor_set_interrupt_mode, if reactor
already runs in the specific mode, directly call
callback function before return 0;

Change-Id: I1fd8b753e9881755aa128aabe6d1e2749e58b39b
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7549
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: <dongx.yi@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-04-26 06:58:36 +00:00
Liu Xiaodong
b763ebfe1d reactor: apply spdk_thread_set_interrupt_mode
The interrupt mode of spdk_thread can be operated
by reactor based on reactor's interrupt mode when
the spdk_thread is scheduled or the reactor is set
into interrupt mode.

Change-Id: Ibeef7ffb759589a7b372bd78e59e3410be061383
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6709
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-04-23 18:09:54 +00:00
Konrad Sztyber
7ae061d1ea event/rpc: replace spaces with underscores in framework_get_scheduler
All the other RPCs use underscores in the names of their fields, so
`framework_get_scheduler` should also use them instead of the spaces.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I0e9edd7c59a4ab61643a7b558a2359e1805ed0b4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7557
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-04-23 18:09:23 +00:00
Krzysztof Karas
8673a27b46 lib/event: modify RPC to get core frequencies from governor
Modifies RPC "framework_get_reactors" to get core frequency for current
core and insert it into JSON response.

Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Change-Id: Ibb9c25e6e1d28ddb4cde42baa20a7e9808652ae8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6582
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
2021-04-22 15:40:30 +00:00
Krzysztof Karas
84c349e1d8 dpdk_governor: refactor _get_core_curr_freqs
Currently _get_core_curr_freqs returns an index from the array
of available frequencies for given core. This change aims to
make this function execute what its name suggests.

Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Change-Id: I1143f692e7bbbf2f8f9e1cd4943f8e3ecd70ddea
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7452
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-04-22 15:40:30 +00:00
GangCao
ebeac5decc event: add an assert check for obtained reactor
In the case that reactor is needed to be valid, add an
explicit assert there.

Change-Id: Ic47030d50a6a940ddf87a3744bae38c94dd7252e
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7320
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: <dongx.yi@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
2021-04-16 05:05:19 +00:00
Liu Xiaodong
ba7aac83ed reactor: get_rusage directly in reactor_run
Move get_rusage directly into reactor_run(), then both
poll mode and interrupt mode can check rusage info.

Change-Id: Id5926752cfb19c13cb969fbfbb35f643e5d49d9a
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6718
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
2021-03-22 09:50:27 +00:00
Liu Xiaodong
ee4a83360f reactor: update tsc records in intr mode
In interrupt mode, reactor spends its valid cpu cycles
to process registered thread interrupt function. So we
can count idle_tsc and busy_tsc in it, and update
reactor's last_tsc in it.

Change-Id: I65f4ae7d3b1e5c7c5c06937d6855f5d1b5c0349f
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6716
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2021-03-22 09:50:27 +00:00
Liu Xiaodong
e2d061fb98 reactor: update core mode from master core
Current update_core_mode is started from the next
core of the master core.
For futher's new scheduler, starting from master
core is required. This change won't impact current
schedulers' behavior.

Change-Id: Ibffd2c93a4288b5e87945ae523ccba88091c4031
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6757
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2021-03-18 14:49:41 +00:00
Ben Walker
f046750c32 event: Add return code to spdk_rpc_initialize
This is an internal API used in several places. The call can fail, so
make sure it can report that correctly.

Change-Id: Iac0ed2c8299c9dd3d2556070278a2224c3807b7b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6640
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: <dongx.yi@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-03-12 08:38:10 +00:00
Tomasz Zawadzki
a38d241cd6 lib/event: remove deprecated fields from spdk_app_opts
max_delay_us was deprecated in SPDK 19.04.
config_file was deprecated in SPDK 20.10.
master_core/pci_blacklist/pci_whitelist were deprecated in SPDK 21.01.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ie8be4c347de58044a7c3d5b1329d96e47ce084b4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6594
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-03-05 08:33:45 +00:00
Nick Connolly
a14deb22e0 lib/event: improve portability
In _set_thread_name, use pthread_setname_np as the default for
platforms that are not Linux or FreeBSD; it's the most common
'non-portable' pthread extension used to set the thread name.

Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
Change-Id: Ia841166f0537cd1303eded15bc7ef1a9f03e3b6e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6465
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2021-02-19 11:30:22 +00:00
yidong0635
0859c83790 reactor: Construct a function to do common code.
remove lw_thread in a static function.

Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: Iade1cb6c88e8aba4ca92c22d2596b8b3dea01ff5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6311
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
2021-02-09 11:24:36 +00:00
Tomasz Zawadzki
e4070ee0e0 so_ver: increase all major versions
To allow SO_MINOR updates on LTS for the whole year it is supported,
the major version for all components needs to be increased.
This is to prevent scenario where two versions exists with matching
versions, but conflicting ABI.
Ex. Next SPDK release adds an API call increasing the minor version,
then LTS needs just a subset of those additions.

Increasing major so version after LTS, allows the quarterly releases
to update versions as needed. Yet allowing LTS to increase minor
version separately.

Disabled test for increasing SO version without ABI change, as
that is goal of this patch. This check shall be removed with SPDK 21.04
release.

This patch:
- increases SO_VER by 1 for all components
- resets SO_MINOR to 0 for all components
- removes suppressions for ABI tests

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I44d01154430a074103bd21c7084f44932e81fe72
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6167
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-02-05 14:43:47 +00:00
Tomasz Zawadzki
e3d29a3012 lib/event: do not spawn a thread for each reactor
Those spdk threads were neither used nor tracked in event framework.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I1becee6390e172a10e08754703e018f7c44e30df
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6213
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2021-02-04 08:35:08 +00:00
Tomasz Zawadzki
7cc83b6258 Revert "lib/event: do not spawn a thread for each reactor"
This reverts commit 72eed604b4.

spdk_vhost_init() relies on having a thread on each reactor.
Without the revert, every vhost controller is created on the same
core and even passing --cpumask when creating does not affect it.

Proper fix would be to change spdk_vhost_init(),
but would require additional testing. For now revert the patch
that spawned always idle threads.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I0dbd6c9fe1d9d23ada260da8fc7b48086223c632
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6186
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Community-CI: Mellanox Build Bot
2021-02-01 08:04:51 +00:00
Jim Harris
7665710cd4 event: wait to shut down subsystems if scheduling in progress
We want to avoid an active for_each_reactor operation
while the reactors are being shut down.

Fixes issue #1766

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I30bc258c5b22545320080d269a1ed8cb0b4e12f2
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6104
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-26 17:33:57 +00:00
Maciej Szwed
0bfc0391d1 event: Do not compile DPDK related code for non-DPDK env
dpdk_governor (and therefore scheduler_dynamic) use DPDK
env. It should not be compiled in non-DPDK env.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I6b7cf15cf7383e6c1e77bfb188b24cabcc1f0fe1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6102
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-26 16:29:52 +00:00
yidong0635
de3878ec31 reactor: Fix unused warning in non-debug mode.
Using reactor once insteads of target to fix this warning.

Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: I30cd6be26669fe1b2c5d694c15bfda223efd3b85
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6086
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-01-26 09:27:33 +00:00
Maciej Szwed
af1c51505d scheduler: Move busy thread if its mask do not match current lcore
When using interrupt mode we can have a situation
when we create thread (which is always busy) with
a particular core mask, but this thread will be
scheduled for different core, because core
pointed by thread mask is in interrupt mode.

This thread will never be moved by scheduler
to correct core because currently scheduler
do not move busy threads.

This change makes scheduler to move busy threads
if their mask do not match core on which they
are executed currently.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I35abdc91b197f1b9d40e491f964d31debad72fa5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6073
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Maciej Szwed
20362e5bc8 schedulers: Add _get_next_target_lcore function
This function will be useful in upcoming patch.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I2a79305b8cb155a94c83b4baa3f5d7014cb602c9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6079
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Maciej Szwed
e742a41456 schedulers: Switch to interrupt mode if core is unused
Save CPU resources by switching reactors w/o any
threads to interrupt mode.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ibd1c1d50d1f6c6d7ed226d585e14999c2fd04621
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5456
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Maciej Szwed
6859a49a98 event: Change reactor mode based on scheduler output
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I9c17839a00fb5dc2d14179ac8fd302267969ef6e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5962
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Maciej Szwed
9cde15093f schedulers: Add interrupt mode information to cores map
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I0d143a1aa05f27c4d0b4bd6212b361eafa966de9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5452
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Liu Xiaodong
a20745541e reactor: add spdk_reactor_set_interrupt_mode func
spdk_reactor_set_interrupt_mode will send event to set
reactor into interrupt mode or poll mode, also set every
notify_cpuset on all reactors for consistency.
It can be used by RPC method or scheduler to set
reactor to interrupt mode while workload is lightweight.

Currently, this function is limited that the specific
reactor should have no attached spdk_thread.

Change-Id: I7e8f449bff1184b9a7948f80b9572066a19da60f
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5853
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-25 20:37:50 +00:00
Liu Xiaodong
227c8b8199 reactor: avoid schedule thread to reactor in intr
Currently, spdk_thread can't get executed on reactor
which is in interrupt mode but interrupt of spdk_thread
is not enabled. So avoid schedule spdk_thread on it.

Change-Id: Ib37d1585f173ed3be8def83cd18aef65e287361c
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5852
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2021-01-25 16:32:33 +00:00
Liu Xiaodong
eff5b149ce reactor: add cpuset to indicate intr mode
Each bit of the cpuset indicates whether a reactor
is going to be in interrupt mode.
Each spdk_cpuset is allocated to each reactor. So it
can only be touched by its reactor.

Change-Id: Ic186de341588b701d7471bf09336309d28b1bf4e
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5850
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2021-01-25 16:32:33 +00:00
Rui Chang
9a66df8102 lib/event: Fix no error info problem when reading spdk_tgt json file
When start spdk_tgt with json config file, if the file cannot be read,
there is no error message indicating what is wrong.

Change-Id: I4e0cbad5fb7a23b99f05ebdce7d0801eebbd63f7
Signed-off-by: Rui Chang <rui.chang@arm.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6042
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2021-01-25 12:52:58 +00:00
Tomasz Zawadzki
72eed604b4 lib/event: do not spawn a thread for each reactor
Those spdk threads were neither used or tracked in event framework.

Needed to edit hardcoded cpumask value in spdkcli test to accept any string.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ieffea1bdf467f50ec0bd3af4b17a1d259fd876b4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5817
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-25 04:55:54 +00:00
Krzysztof Karas
abf52d7d7f spdk_top: add rpc for scheduler and governor
Added rpc to get name and period of currently set spdk scheduler
and name of currently set spdk governor.

Signed-off-by: Krzysztof Karas <krzysztof.karas@intel.com>
Change-Id: I5562a81a7f9e4879bd48a765c9467f70b43f73ab
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5917
Community-CI: Broadcom CI
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2021-01-22 18:33:13 +00:00
Maciej Szwed
bfca56ffc9 scheduler: Track threads count per core during rebalancing
This will be helpful in upcoming patches for changing
interrupt mode (when reactor have no threads).

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I4902d0bd26f27db2b98dc4ca4fd4df934f59d9a3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5450
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-22 18:31:25 +00:00
Maciej Szwed
ad15f44116 scheduler: Don't use main core for new thread if it is too busy
We don't want to make main core 100% busy, so don't
move thread to it if thread busy time is higher than
main core idle time.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ib521ac0d8959ec8062322ff7b2ad587d85ccada5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5638
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-22 18:31:25 +00:00
Maciej Szwed
ce23de932d scheduler: Change main core frequency dynamically
Use DPDK based governor to change first core frequency
in dynamic scheduler. Core frequencies are adjusted
based on relative usages.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ibeb9ca59fd67df27cfb0bfe752e66e5eef41b126
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5438
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-22 18:31:25 +00:00
Maciej Szwed
6ade44c25f event: Implement new scheduler
This scheduler will group idle threads on first available
core and balance busy threads on other cores.

Change-Id: Ia0425c767dc3da2a66a9d82a20a0012fac83163c
Signed-off-by: Vitaliy Mysak <vitaliy.mysak@intel.com>
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3901
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-22 18:31:25 +00:00
Maciej Szwed
80a13be9f5 event: Save thread stats to last_stats field in spdk_lw_thread structure
This field will be used in upcoming patches
by scheduler to keep a history of threads
statistics. Base on those scheduler will
be able to calculate how busy a thread is.

Also we have to save the value of this field
while rescheduling thread.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Iffbd1f946e1d159ec7277a39bc30161e71722456
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5972
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-22 18:31:25 +00:00
Liu Xiaodong
5a499ac098 reactor: improve spdk_reactor_get
Size of g_reactors allocated is g_reactor_count, so
valid lcore should be less than g_reactor_count.

Change-Id: I9d5cde7856d6b400a7188631812b53a7e5701d0f
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5870
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-20 08:44:56 +00:00
Liu Xiaodong
992b168ee5 reactor: replace last_core() by g_reactor_count
Record result of spdk_env_get_last_core() to
g_reactor_count, since spdk_env_get_last_core()
iterates through all core ids in a loop, it is
not so efficient.

Change-Id: I6bbbfec0bc25490bab33436c84fca3da6380cbe8
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5955
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-20 08:44:56 +00:00
Maciej Szwed
89a922221d event: Fix SPDK_SCHEDULER_REGISTER macro
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I1b7d00f7ae2675e316eb64323966f8696357e7c4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5897
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-15 08:28:30 +00:00
Maciej Szwed
6e3346df5b scheduler: Add option to provide scheduler period in framework_set_scheduler RPC
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I96a8937ffe8751f093227589b076a5ae77fa5f16
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5295
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-15 08:28:30 +00:00
Maciej Szwed
cc0d13f7e6 event: Change _spdk_scheduler_period_set() to use usec as argument instead of ticks
That is more inline with other places we
do things like this in SPDK. Also change
argument type to uint64_t.

Change-Id: Ie98f6c37bf53d583431ea9edd7d977075aeaa7a0
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5876
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-15 08:28:30 +00:00
Maciej Szwed
f3bf9f501a event: Set default scheduling period
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ieabe13803d0bb7013ca529da196cb1b5d2eacc98
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5434
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2021-01-15 08:28:30 +00:00
Maciej Szwed
584fb373eb scheduler: copy snapshot of thread stats to new spdk_lw_thread field
This will be used by a scheduler while balancing threads
to get information how much busy a thread is.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ib0e897a9bb5d2a71173f60cce7e1d442e67a57f9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5253
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-15 08:28:30 +00:00
Maciej Szwed
75022aa205 event: Move scheduler set call and scheduling reactor set call
This fixes issue where scheduler is not being
initialized on first set.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I881438955f08852fb72187a2b92c7acfb12cd662
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5029
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2021-01-15 08:28:30 +00:00
yidong0635
ad583422ce lib/event: Fix SEGV causing by spdk_app_stop executing twice.
Bdevperf shutdown_cb calls spdk_app_stop(0) directly.
 But since json configuration also failed, spdk_rpc_initialize()
 that calls spdk_app_stop, with -EINVAL. So subsystems are shutdown twice.

 Adding a flag stopped in spdk_app to record the spdk_app status.
 This confirms spdk app one start and one stop.

 Meanwhile this fixes some SEGVS.

 Fixes issue: #1731.

Signed-off-by: yidong0635 <dongx.yi@intel.com>
Change-Id: Ic3e36a458813a2d6bcf806de67ab691446b8d6fe
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5802
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Community-CI: Mellanox Build Bot
2021-01-13 10:07:44 +00:00
Ziye Yang
e6f73c8045 lib/event: Remove the non-used "FIELD_CHECK" statement.
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: Idd9a14bd5adad68c46e8e50e65fa539185a8cd1b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5680
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: <dongx.yi@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2020-12-28 13:58:50 +00:00
Ziye Yang
48701bd955 lib/event: support ABI compatibility for spdk_app_opts.
This patch is used to support ABI compatability issue for spdk_app_opts.

Fixes #1484

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: I6fed777fa15b367f7c3706b8f218d86d56493906
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5330
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jacek Kalwas <jacek.kalwas@intel.com>
2020-12-16 08:40:14 +00:00
Jim Harris
3795c1cfd8 event: replace master_core with main_core in spdk_app_opts
master_core will still be available but deprecated.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6fe9eb7fecb2919795c439a02cb7d9d06a2774d8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5358
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2020-12-03 09:41:07 +00:00