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Message-Id: <20230428073809.1803624-31-irogers@google.com>
Date: Fri, 28 Apr 2023 00:37:56 -0700
From: Ian Rogers <irogers@...gle.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
Kan Liang <kan.liang@...ux.intel.com>,
Ahmad Yasin <ahmad.yasin@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Stephane Eranian <eranian@...gle.com>,
Andi Kleen <ak@...ux.intel.com>,
Perry Taylor <perry.taylor@...el.com>,
Samantha Alt <samantha.alt@...el.com>,
Caleb Biggers <caleb.biggers@...el.com>,
Weilin Wang <weilin.wang@...el.com>,
Edward Baker <edward.baker@...el.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
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linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v2 30/43] perf test: Add cputype testing to perf stat
Check a bogus PMU fails and that a known PMU succeeds. Limit to PMUs
known cpu, cpu_atom and armv8_pmuv3_0 ones.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/tests/shell/stat.sh | 44 ++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/tools/perf/tests/shell/stat.sh b/tools/perf/tests/shell/stat.sh
index 2c1d3f704995..fe1283ca39d1 100755
--- a/tools/perf/tests/shell/stat.sh
+++ b/tools/perf/tests/shell/stat.sh
@@ -91,9 +91,53 @@ test_topdown_weak_groups() {
echo "Topdown weak groups test [Success]"
}
+test_cputype() {
+ # Test --cputype argument.
+ echo "cputype test"
+
+ # Bogus PMU should fail.
+ if perf stat --cputype="123" -e instructions true > /dev/null 2>&1
+ then
+ echo "cputype test [Bogus PMU didn't fail]"
+ err=1
+ return
+ fi
+
+ # Find a known PMU for cputype.
+ pmu=""
+ for i in cpu cpu_atom armv8_pmuv3_0
+ do
+ if test -d "/sys/devices/$i"
+ then
+ pmu="$i"
+ break
+ fi
+ if perf stat -e "$i/instructions/" true > /dev/null 2>&1
+ then
+ pmu="$i"
+ break
+ fi
+ done
+ if test "x$pmu" = "x"
+ then
+ echo "cputype test [Skipped known PMU not found]"
+ return
+ fi
+
+ # Test running with cputype produces output.
+ if ! perf stat --cputype="$pmu" -e instructions true 2>&1 | grep -E -q "instructions"
+ then
+ echo "cputype test [Failed count missed with given filter]"
+ err=1
+ return
+ fi
+ echo "cputype test [Success]"
+}
+
test_default_stat
test_stat_record_report
test_stat_repeat_weak_groups
test_topdown_groups
test_topdown_weak_groups
+test_cputype
exit $err
--
2.40.1.495.gc816e09b53d-goog
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