linux-kernel - [PATCH v3 2/2] perf test: Workload test of all PMUs

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Message-Id: <20210917184240.2181186-2-irogers@google.com>
Date:   Fri, 17 Sep 2021 11:42:40 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jin Yao <yao.jin@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        "Paul A . Clarke" <pc@...ibm.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     eranian@...gle.com, Ian Rogers <irogers@...gle.com>
Subject: [PATCH v3 2/2] perf test: Workload test of all PMUs

Iterate over the list of PMUs and run the 'true' workload on them. If
the event isn't printed then run the large 'perf bench internals
synthesize' workload and check the event is counted.

On a Skylake this test takes 1m15s mainly running the 'true' workload.

Suggested-by: John Garry <john.garry@...wei.com>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/shell/stat_all_pmu.sh | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 tools/perf/tests/shell/stat_all_pmu.sh

diff --git a/tools/perf/tests/shell/stat_all_pmu.sh b/tools/perf/tests/shell/stat_all_pmu.sh
new file mode 100755
index 000000000000..2de7fd0394fd
--- /dev/null
+++ b/tools/perf/tests/shell/stat_all_pmu.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+# perf all PMU test
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+for p in $(perf list --raw-dump pmu); do
+  echo "Testing $p"
+  result=$(perf stat -e "$p" true 2>&1)
+  if [[ ! "$result" =~ "$p" ]] && [[ ! "$result" =~ "<not supported>" ]]; then
+    # We failed to see the event and it is supported. Possibly the workload was
+    # too small so retry with something longer.
+    result=$(perf stat -e "$p" perf bench internals synthesize 2>&1)
+    if [[ ! "$result" =~ "$p" ]]; then
+      echo "Event '$p' not printed in:"
+      echo "$result"
+      exit 1
+    fi
+  fi
+done
+
+exit 0
-- 
2.33.0.464.g1972c5931b-goog