Commit b2738fda authored by Weilin Wang's avatar Weilin Wang Committed by Arnaldo Carvalho de Melo
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perf test: Add test for Intel TPEBS counting mode



Intel TPEBS sampling mode is supported through perf record. The counting mode
code uses perf record to capture retire_latency value and use it in metric
calculation. This test checks the counting mode code on Intel platforms.

Committer testing:

  root@x1:~# perf test tpebs
  123: test Intel TPEBS counting mode                                  : Ok
  root@x1:~# set -o vi
  root@x1:~# perf test tpebs
  123: test Intel TPEBS counting mode                                  : Ok
  root@x1:~# perf test -v tpebs
  123: test Intel TPEBS counting mode                                  : Ok
  root@x1:~# perf test -vvv tpebs
  123: test Intel TPEBS counting mode:
  --- start ---
  test child forked, pid 16603
  Testing without --record-tpebs
  Testing with --record-tpebs
  ---- end(0) ----
  123: test Intel TPEBS counting mode                                  : Ok
  root@x1:~#

Reviewed-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarWeilin Wang <weilin.wang@intel.com>
Acked-by: default avatarIan Rogers <irogers@google.com>
Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Samantha Alt <samantha.alt@intel.com>
Link: https://lore.kernel.org/r/20240720062102.444578-9-weilin.wang@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 169f18fd
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