perf sched: Fix sched latency analysis incorrection when using 'sched:sched_wakeup'
authorChunxin Zang <zangchunxin@lixiang.com>
Tue, 28 Mar 2023 06:00:57 +0000 (14:00 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 12 Apr 2023 22:30:39 +0000 (19:30 -0300)
commit4453deacf44615b2d45a0b5226ff132e830bd03d
tree03ca4da6fd500ba5d864cbaf66f2e3d745330dba
parent9efe423e4387893498e11c75207bc9a1c9121246
perf sched: Fix sched latency analysis incorrection when using 'sched:sched_wakeup'

'perf sched latency' is incorrect to get process schedule latency when
it used 'sched:sched_wakeup' to analysis perf.data.

Because 'perf record' prefers to use 'sched:sched_waking' to
'sched:sched_wakeup' since commit d566a9c2d482 ("perf sched: Prefer
sched_waking event when it exists"). It's very reasonable to evaluate
process schedule latency.

Similarly, update sched latency/map/replay to use sched_waking events.

Signed-off-by: Chunxin Zang <zangchunxin@lixiang.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230328060038.2346935-1-zangchunxin@lixiang.com
Signed-off-by: Jerry Zhou <zhouchunhua@lixiang.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-sched.c