perf jevents: Add test for arch std events

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Recently there was an undetected breakage for std arch event support.

Add support in "PMU events" testcase to detect such breakages.

For this, the "test" arch needs has support added to process std arch
events. And a test event is added for the test, ifself.

Also add a few code comments to help understand the code a bit better.

Committer testing:

Before:

  # perf test -vv pmu  |& grep l3_cache_rd
  #

After:

  # perf test -vv pmu  |& grep l3_cache_rd
  testing event table l3_cache_rd: pass
  testing aliases PMU cpu: matched event l3_cache_rd
  #

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-By: Kajol Jain<kjain@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/1603364547-197086-3-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

...

This commit is contained in:

John Garry 2020-10-22 19:02:27 +08:00 • committed by Arnaldo Carvalho de Melo

parent fa1b41a74d

commit 644bf4b0f7

4 changed files with 31 additions and 0 deletions

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8

tools/perf/pmu-events/arch/test/arch-std-events.json

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5

tools/perf/pmu-events/arch/test/test_cpu/cache.json

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4

tools/perf/pmu-events/jevents.c

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14

tools/perf/tests/pmu-events.c

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