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scheduler: copy snapshot of thread stats to new spdk_lw_thread field

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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>
This commit is contained in:
Maciej Szwed 2020-11-26 10:28:15 +01:00 committed by Tomasz Zawadzki
parent 75022aa205
commit 584fb373eb
2 changed files with 3 additions and 1 deletions
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3
include/spdk_internal/event.h
View File

@ -66,7 +66,8 @@ struct spdk_lw_thread {
uint32_t lcore;
uint32_t new_lcore;
bool resched;
struct spdk_thread_stats current_stats;
struct spdk_thread_stats current_stats;
struct spdk_thread_stats snapshot_stats;
};
struct spdk_reactor {

1
lib/event/reactor.c
View File

@ -581,6 +581,7 @@ _reactors_scheduler_gather_metrics(void *arg1, void *arg2)
i = 0;
TAILQ_FOREACH(lw_thread, &reactor->threads, link) {
core_info->threads[i] = lw_thread;
_spdk_lw_thread_get_current_stats(lw_thread, &lw_thread->snapshot_stats);
i++;
}
}