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linux/tools/perf/tests/shell/stat_all_metrics.sh
Ian Rogers 00236a2dc8 perf test: Allow skip for all metrics test
Some Intel TMA metrics compute a ratio that may divide by 0, which
causes the metric not to print. This happens for metrics with FP_ARITH
events. If we see these events in the result and would otherwise fail,
then switch to a skip.

Also, don't early exit when processing metrics.

Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220201015858.1226914-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-14 21:04:20 -03:00

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#!/bin/sh
# perf all metrics test
# SPDX-License-Identifier: GPL-2.0
set -e
err=0
for m in $(perf list --raw-dump metrics); do
echo "Testing $m"
result=$(perf stat -M "$m" true 2>&1)
if [[ ! "$result" =~ "$m" ]] && [[ ! "$result" =~ "<not supported>" ]]; then
# We failed to see the metric and the events are support. Possibly the
# workload was too small so retry with something longer.
result=$(perf stat -M "$m" perf bench internals synthesize 2>&1)
if [[ ! "$result" =~ "$m" ]]; then
echo "Metric '$m' not printed in:"
echo "$result"
if [[ "$result" =~ "FP_ARITH" && "$err" != "1" ]]; then
echo "Skip, not fail, for FP issues"
err=2
else
err=1
fi
fi
fi
done
exit "$err"