Commit 0c361c6e authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
Browse files

perf test: Stat test for repeat with a weak group 



Breaking a weak group requires multiple passes of an evlist, with
multiple runs this can introduce bugs ultimately leading to
segfaults. Add a test to cover this.

Signed-off-by: default avatarIan Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220822213352.75721-2-irogers@google.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent bf515f02

tools/perf/tests/shell/stat.sh

+19 −0
Original line number Diff line number Diff line
@@ -28,6 +28,24 @@ test_stat_record_report() { 
  echo "stat record and report test [Success]"

}



test_stat_repeat_weak_groups() {

  echo "stat repeat weak groups test"

  if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \

     true 2>&1 | grep -q 'seconds time elapsed'

  then

    echo "stat repeat weak groups test [Skipped event parsing failed]"

    return

  fi

  if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \

    true > /dev/null 2>&1

  then

    echo "stat repeat weak groups test [Failed]"

    err=1

    return

  fi

  echo "stat repeat weak groups test [Success]"

}



test_topdown_groups() {

  # Topdown events must be grouped with the slots event first. Test that

  # parse-events reorders this.
@@ -75,6 +93,7 @@ test_topdown_weak_groups() { 


test_default_stat

test_stat_record_report

test_stat_repeat_weak_groups

test_topdown_groups

test_topdown_weak_groups

exit $err