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perf test all metrics: Fully ignore Default metric failures

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Determine if a metric is default from `perf list --raw-dump $m` eg:
```
$ perf list --raw-dump l1_prefetch_miss_rate
Default4 l1_prefetch_miss_rate
```
If a metric has "not supported" or "no supported events" then ignore
these failures for default metrics. Tidy up the skip/fail messages in
the output to make them easier to spot/read.

```
$ perf list -vv "all metrics"
...
Testing llc_miss_rate
[Ignored llc_miss_rate] failed but as a Default metric this can be expected
Error: No supported events found. The LLC-loads event is not supported.
...
```

Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Closes: https://lore.kernel.org/linux-perf-users/20251119104751.51960-1-tmricht@linux.ibm.com/
Reported-by: Namhyung Kim <namhyung@kernel.org>
Reported-by: James Clark <james.clark@linaro.org>
Closes: https://lore.kernel.org/lkml/aRi9xnwdLh3Dir9f@google.com/
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers 2025-11-19 11:30:47 -08:00 committed by Namhyung Kim
parent d53b499658
commit 41b67ab3d2
1 changed files with 17 additions and 10 deletions
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27
tools/perf/tests/shell/stat_all_metrics.sh
View File

@ -27,19 +27,20 @@ for m in $(perf list --raw-dump metrics); do
fi
if [[ "$result" =~ "Cannot resolve IDs for" || "$result" =~ "No supported events found" ]]
then
if [[ "$m" == @(l1_prefetch_miss_rate|stalled_cycles_per_instruction) ]]
if [[ $(perf list --raw-dump $m) == "Default"* ]]
then
# Default metrics that may use unsupported events.
echo "[Ignored $m] failed but as a Default metric this can be expected"
echo $result
continue
fi
echo "Metric contains missing events"
echo "[Failed $m] Metric contains missing events"
echo $result
err=1 # Fail
continue
elif [[ "$result" =~ \
"Access to performance monitoring and observability operations is limited" ]]
then
echo "Permission failure"
echo "[Skipped $m] Permission failure"
echo $result
if [[ $err -eq 0 ]]
then
@ -48,7 +49,7 @@ for m in $(perf list --raw-dump metrics); do
continue
elif [[ "$result" =~ "in per-thread mode, enable system wide" ]]
then
echo "Permissions - need system wide mode"
echo "[Skipped $m] Permissions - need system wide mode"
echo $result
if [[ $err -eq 0 ]]
then
@ -57,7 +58,13 @@ for m in $(perf list --raw-dump metrics); do
continue
elif [[ "$result" =~ "<not supported>" ]]
then
echo "Not supported events"
if [[ $(perf list --raw-dump $m) == "Default"* ]]
then
echo "[Ignored $m] failed but as a Default metric this can be expected"
echo $result
continue
fi
echo "[Skipped $m] Not supported events"
echo $result
if [[ $err -eq 0 ]]
then
@ -66,7 +73,7 @@ for m in $(perf list --raw-dump metrics); do
continue
elif [[ "$result" =~ "<not counted>" ]]
then
echo "Not counted events"
echo "[Skipped $m] Not counted events"
echo $result
if [[ $err -eq 0 ]]
then
@ -75,7 +82,7 @@ for m in $(perf list --raw-dump metrics); do
continue
elif [[ "$result" =~ "FP_ARITH" || "$result" =~ "AMX" ]]
then
echo "FP issues"
echo "[Skipped $m] FP issues"
echo $result
if [[ $err -eq 0 ]]
then
@ -84,7 +91,7 @@ for m in $(perf list --raw-dump metrics); do
continue
elif [[ "$result" =~ "PMM" ]]
then
echo "Optane memory issues"
echo "[Skipped $m] Optane memory issues"
echo $result
if [[ $err -eq 0 ]]
then
@ -101,7 +108,7 @@ for m in $(perf list --raw-dump metrics); do
# No error result and metric shown.
continue
fi
echo "Metric '$m' has non-zero error '$result_err' or not printed in:"
echo "[Failed $m] has non-zero error '$result_err' or not printed in:"
echo "$result"
err=1
done