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perf tests: Support 'Convert perf time to TSC' test for hybrid 

Since for "cycles:u' on hybrid platform, it creates two "cycles".  So
the second evsel in evlist also needs initialization.

With this patch,

  # ./perf test 71
  71: Convert perf time to TSC                                        : Ok

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210427070139.25256-25-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao 2021-04-27 15:01:37 +08:00 committed by Arnaldo Carvalho de Melo
parent c102038892
commit d9da6f70eb
1 changed files with 12 additions and 0 deletions
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12
tools/perf/tests/perf-time-to-tsc.c
View File

@ -20,6 +20,7 @@
#include "tsc.h"
#include "mmap.h"
#include "tests.h"
#include "pmu.h"
#define CHECK__(x) { \
while ((x) < 0) { \
@ -88,6 +89,17 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
evsel->core.attr.disabled = 1;
evsel->core.attr.enable_on_exec = 0;
/*
* For hybrid "cycles:u", it creates two events.
* Init the second evsel here.
*/
if (perf_pmu__has_hybrid()) {
evsel = evsel__next(evsel);
evsel->core.attr.comm = 1;
evsel->core.attr.disabled = 1;
evsel->core.attr.enable_on_exec = 0;
}
CHECK__(evlist__open(evlist));
CHECK__(evlist__mmap(evlist, UINT_MAX));