[PATCH 01/26] perf test: Allow skip for all metrics test

From: Ian Rogers <irogers@google.com>
To: Kan Liang <kan.liang@linux.intel.com>,
	Zhengjun Xing <zhengjun.xing@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Andi Kleen <ak@linux.intel.com>,
	James Clark <james.clark@arm.com>,
	John Garry <john.garry@huawei.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH 01/26] perf test: Allow skip for all metrics test
Date: Sat, 29 Jan 2022 00:09:04 -0800	[thread overview]
Message-ID: <20220129080929.837293-2-irogers@google.com> (raw)
In-Reply-To: <20220129080929.837293-1-irogers@google.com>

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.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/shell/stat_all_metrics.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/stat_all_metrics.sh b/tools/perf/tests/shell/stat_all_metrics.sh
index 7f4ba3cad632..e7c59e5a7a98 100755
--- a/tools/perf/tests/shell/stat_all_metrics.sh
+++ b/tools/perf/tests/shell/stat_all_metrics.sh
@@ -4,6 +4,7 @@
 
 set -e
 
+err=0
 for m in $(perf list --raw-dump metrics); do
   echo "Testing $m"
   result=$(perf stat -M "$m" true 2>&1)
@@ -14,9 +15,14 @@ for m in $(perf list --raw-dump metrics); do
     if [[ ! "$result" =~ "$m" ]]; then
       echo "Metric '$m' not printed in:"
       echo "$result"
-      exit 1
+      if [[ "$result" =~ "FP_ARITH" && "$err" != "1" ]]; then
+        echo "Skip, not fail, for FP issues"
+        err=2
+      else
+        err=1
+      fi
     fi
   fi
 done
 
-exit 0
+exit "$err"
-- 
2.35.0.rc2.247.g8bbb082509-goog

