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Thu, 27 Mar 2025 16:01:01 -0700 (PDT) Date: Thu, 27 Mar 2025 15:48:18 -0700 In-Reply-To: <20250327225651.642965-1-ctshao@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250327225651.642965-1-ctshao@google.com> X-Mailer: git-send-email 2.49.0.472.ge94155a9ec-goog Message-ID: <20250327225651.642965-4-ctshao@google.com> Subject: [PATCH v2 3/3] perf test: Add stat uniquifying test From: Chun-Tse Shao To: linux-kernel@vger.kernel.org Cc: Chun-Tse Shao , peterz@infradead.org, mingo@redhat.com, acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, kan.liang@linux.intel.com, ak@linux.intel.com, howardchu95@gmail.com, linux@treblig.org, yeoreum.yun@arm.com, james.clark@linaro.org, weilin.wang@intel.com, asmadeus@codewreck.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The `stat+uniquify.sh` test retrieves all uniquified `clockticks` events from `perf list -v clockticks` and check if `perf stat -e clockticks -A` contains all of them. Signed-off-by: Chun-Tse Shao --- .../tests/shell/stat+event_uniquifying.sh | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100755 tools/perf/tests/shell/stat+event_uniquifying.sh diff --git a/tools/perf/tests/shell/stat+event_uniquifying.sh b/tools/perf/= tests/shell/stat+event_uniquifying.sh new file mode 100755 index 000000000000..5ec35c52b7d9 --- /dev/null +++ b/tools/perf/tests/shell/stat+event_uniquifying.sh @@ -0,0 +1,69 @@ +#!/bin/bash +# perf stat events uniquifying +# SPDX-License-Identifier: GPL-2.0 + +set -e + +stat_output=3D$(mktemp /tmp/__perf_test.stat_output.XXXXX) +perf_tool=3Dperf +err=3D0 + +test_event_uniquifying() { + # We use `clockticks` to verify the uniquify behavior. + event=3D"clockticks" + + # If the `-A` option is added, the event should be uniquified. + # + # $perf list -v clockticks + # + # List of pre-defined events (to be used in -e or -M): + # + # uncore_imc_0/clockticks/ [Kernel PMU event] + # uncore_imc_1/clockticks/ [Kernel PMU event] + # uncore_imc_2/clockticks/ [Kernel PMU event] + # uncore_imc_3/clockticks/ [Kernel PMU event] + # uncore_imc_4/clockticks/ [Kernel PMU event] + # uncore_imc_5/clockticks/ [Kernel PMU event] + # + # ... + # + # $perf stat -e clockticks -A -- true + # + # Performance counter stats for 'system wide': + # + # CPU0 3,773,018 uncore_imc_0/clockticks/ + # CPU0 3,609,025 uncore_imc_1/clockticks/ + # CPU0 0 uncore_imc_2/clockticks/ + # CPU0 3,230,009 uncore_imc_3/clockticks/ + # CPU0 3,049,897 uncore_imc_4/clockticks/ + # CPU0 0 uncore_imc_5/clockticks/ + # + # 0.002029828 seconds time elapsed + + echo "stat event uniquifying test" + uniquified_event_array=3D() + + # Check how many uniquified events. + while IFS=3D read -r line; do + uniquified_event=3D$(echo "$line" | awk '{print $1}') + uniquified_event_array+=3D("${uniquified_event}") + done < <(${perf_tool} list -v ${event} | grep "\[Kernel PMU event\]") + + perf_command=3D"${perf_tool} stat -e $event -A -o ${stat_output} -- true" + $perf_command + + # Check the output contains all uniquified events. + for uniquified_event in "${uniquified_event_array[@]}"; do + if ! cat "${stat_output}" | grep -q "${uniquified_event}"; then + echo "Event is not uniquified [Failed]" + echo "${perf_command}" + cat "${stat_output}" + err=3D1 + break + fi + done +} + +test_event_uniquifying +rm -f "${stat_output}" +exit $err --=20 2.49.0.472.ge94155a9ec-goog