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08d9e88348
Issue reported by Thomas Falcon and diagnosed by Kan Liang here: https://lore.kernel.org/lkml/d44036481022c27d83ce0faf8c7f77042baedb34.camel@intel.com/ Metrics with missing events can be erroneously skipped if they contain FP, AMX or PMM events. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Thomas Falcon <thomas.falcon@intel.com> Link: https://lore.kernel.org/r/20250211213031.114209-25-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
95 lines
2.0 KiB
Bash
Executable File
95 lines
2.0 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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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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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" $system_wide_flag -- sleep 0.01 2>&1)
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result_err=$?
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if [[ $result_err -gt 0 ]]
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then
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if [[ "$result" =~ "Cannot resolve IDs for" ]]
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then
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echo "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 "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 "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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echo "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" =~ "FP_ARITH" || "$result" =~ "AMX" ]]
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then
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echo "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 "Optane memory issues"
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echo $result
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if [[ $err -eq 0 ]]
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then
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err=2 # Skip
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fi
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continue
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fi
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fi
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if [[ "$result" =~ ${m:0:50} ]]
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then
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continue
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fi
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# Failed, possibly the workload was too small so retry with something longer.
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result=$(perf stat -M "$m" $system_wide_flag -- perf bench internals synthesize 2>&1)
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if [[ "$result" =~ ${m:0:50} ]]
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then
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continue
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fi
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echo "Metric '$m' 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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