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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>
117 lines
2.7 KiB
Bash
Executable File
117 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# perf all metrics test
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# SPDX-License-Identifier: GPL-2.0
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ParanoidAndNotRoot()
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{
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[ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
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}
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test_prog="sleep 0.01"
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system_wide_flag="-a"
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if ParanoidAndNotRoot 0
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then
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system_wide_flag=""
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test_prog="perf test -w noploop"
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fi
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err=0
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for m in $(perf list --raw-dump metrics); do
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echo "Testing $m"
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result=$(perf stat -M "$m" $system_wide_flag -- $test_prog 2>&1)
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result_err=$?
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if [[ $result_err -eq 0 && "$result" =~ ${m:0:50} ]]
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then
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# No error result and metric shown.
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continue
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fi
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if [[ "$result" =~ "Cannot resolve IDs for" || "$result" =~ "No supported events found" ]]
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then
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if [[ $(perf list --raw-dump $m) == "Default"* ]]
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then
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echo "[Ignored $m] failed but as a Default metric this can be expected"
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echo $result
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continue
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fi
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echo "[Failed $m] Metric contains missing events"
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echo $result
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err=1 # Fail
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continue
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elif [[ "$result" =~ \
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"Access to performance monitoring and observability operations is limited" ]]
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then
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echo "[Skipped $m] Permission failure"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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elif [[ "$result" =~ "in per-thread mode, enable system wide" ]]
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then
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echo "[Skipped $m] Permissions - need system wide mode"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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elif [[ "$result" =~ "<not supported>" ]]
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then
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if [[ $(perf list --raw-dump $m) == "Default"* ]]
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then
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echo "[Ignored $m] failed but as a Default metric this can be expected"
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echo $result
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continue
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fi
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echo "[Skipped $m] Not supported events"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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elif [[ "$result" =~ "<not counted>" ]]
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then
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echo "[Skipped $m] Not counted events"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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elif [[ "$result" =~ "FP_ARITH" || "$result" =~ "AMX" ]]
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then
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echo "[Skipped $m] FP issues"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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elif [[ "$result" =~ "PMM" ]]
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then
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echo "[Skipped $m] Optane memory issues"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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fi
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# Failed, possibly the workload was too small so retry with something longer.
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result=$(perf stat -M "$m" $system_wide_flag -- perf bench internals synthesize 2>&1)
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result_err=$?
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if [[ $result_err -eq 0 && "$result" =~ ${m:0:50} ]]
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then
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# No error result and metric shown.
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continue
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fi
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echo "[Failed $m] has non-zero error '$result_err' or not printed in:"
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echo "$result"
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err=1
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done
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exit "$err"
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