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perf test: Add basic stat and topdown group test

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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: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian 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: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-05-16 22:27:24 -07:00 committed by Arnaldo Carvalho de Melo
parent d98079c05b
commit 6a973e2919
1 changed files with 67 additions and 0 deletions
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67
tools/perf/tests/shell/stat.sh Executable file
View File

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#!/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