Commit Graph

2 Commits

Author SHA1 Message Date
Konrad Sztyber
95677a1300 lib/trace_parser: method for retrieving trace flags
It gives user access to things like the tsc rate and tracepoint
definitions.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ib50126b331faa4508174c7cb707643a3d8db6a01
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9430
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: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-06-30 13:32:25 -04:00
Konrad Sztyber
907e912b96 lib/trace_parser: add trace_parser library stubs
This library will provide functions that parse traces recorded by an
SPDK application.  This includes merging traces from multiple cores,
sorting them by their timestamp and constructing trace entries spanning
across multiple buffers.  All of these tasks are currently implemented
in the spdk_trace app, so most of its code will be moved here (this is
the reason for using C++).

The motivation for extracting this code to a library is to be able to
use it from places other than the spdk_trace app, specifically the
`scripts/bpf/trace.py` script.

The main reason for creating a separate library instead of extending
libtrace is to avoid pulling in all of its dependencies.  ISA-L is the
most problematic, as we only build it as a static library, which makes
it impossible to use with dlopen (making it unusable in scripts).

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: If101ca3425d7404abd51b0da2031358d0be44766
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9428
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: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
2022-06-30 13:32:25 -04:00