Commit 6a973e29 authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
Browse files

perf test: Add basic stat and topdown group test 



Add a basic stat test.

Add two tests of grouping behavior for topdown events. Topdown events
are special as they must be grouped with the slots event first.

Reviewed-by: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarIan Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220517052724.283874-3-irogers@google.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent d98079c0

tools/perf/tests/shell/stat.sh

0 → 100755
+67 −0
Original line number Original line Diff line number Diff line 
#!/bin/sh

# perf stat tests

# SPDX-License-Identifier: GPL-2.0



set -e



err=0

test_default_stat() {

  echo "Basic stat command test"

  if ! perf stat true 2>&1 | egrep -q "Performance counter stats for 'true':"

  then

    echo "Basic stat command test [Failed]"

    err=1

    return

  fi

  echo "Basic stat command test [Success]"

}



test_topdown_groups() {

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

  # parse-events reorders this.

  echo "Topdown event group test"

  if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1

  then

    echo "Topdown event group test [Skipped event parsing failed]"

    return

  fi

  if perf stat -e '{slots,topdown-retiring}' true 2>&1 | egrep -q "<not supported>"

  then

    echo "Topdown event group test [Failed events not supported]"

    err=1

    return

  fi

  if perf stat -e '{topdown-retiring,slots}' true 2>&1 | egrep -q "<not supported>"

  then

    echo "Topdown event group test [Failed slots not reordered first]"

    err=1

    return

  fi

  echo "Topdown event group test [Success]"

}



test_topdown_weak_groups() {

  # Weak groups break if the perf_event_open of multiple grouped events

  # fails. Breaking a topdown group causes the events to fail. Test a very large

  # grouping to see that the topdown events aren't broken out.

  echo "Topdown weak groups test"

  ok_grouping="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring},branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references"

  if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1

  then

    echo "Topdown weak groups test [Skipped event parsing failed]"

    return

  fi

  group_needs_break="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring,branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references}:W"

  if perf stat --no-merge -e "$group_needs_break" true 2>&1 | egrep -q "<not supported>"

  then

    echo "Topdown weak groups test [Failed events not supported]"

    err=1

    return

  fi

  echo "Topdown weak groups test [Success]"

}



test_default_stat

test_topdown_groups

test_topdown_weak_groups

exit $err