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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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b02e597450
Optimize the execution of the metric validation and metric listing shell test suites: 1. `stat_metrics_values.sh`: The Python metric validator runs the `perf bench futex hash` workload for each validated metric relationship. Reduce the benchmark runtime limit from `-r 2` (2 seconds) to `-r 1` (1 second). This cuts the workload duration in half while still generating sufficient PMU events to satisfy non-zero threshold metric validations. 2. `stat_all_metrics.sh`: The metric checking test runs `perf stat` sequentially across all 433+ listed metrics. Change the default workload for system-wide runs from `sleep 0.01` to `true`. This avoids the 10ms sleep delay on each sequential metric invocation, saving over 4 seconds of total wall time during full test suite runs. Assisted-by: Antigravity:gemini-3.1-pro Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
39 lines
1.2 KiB
Bash
Executable File
39 lines
1.2 KiB
Bash
Executable File
#!/bin/bash
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# perf metrics value validation
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# SPDX-License-Identifier: GPL-2.0
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shelldir=$(dirname "$0")
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# shellcheck source=lib/setup_python.sh
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. "${shelldir}"/lib/setup_python.sh
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grep -q GenuineIntel /proc/cpuinfo || { echo Skipping non-Intel; exit 2; }
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# Skip if no permission to record system-wide events
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if ! perf stat -a -e instructions sleep 0.01 >/dev/null 2>&1; then
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echo "Skipping: no permission to record system-wide events (-a)"
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exit 2
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fi
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pythonvalidator=$(dirname $0)/lib/perf_metric_validation.py
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rulefile=$(dirname $0)/lib/perf_metric_validation_rules.json
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tmpdir=$(mktemp -d /tmp/__perf_test.program.XXXXX)
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workload="perf bench futex hash -r 1 -s"
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# Add -debug, save data file and full rule file
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echo "Launch python validation script $pythonvalidator"
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echo "Output will be stored in: $tmpdir"
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for cputype in /sys/bus/event_source/devices/cpu_*; do
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cputype=$(basename "$cputype")
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echo "Testing metrics for: $cputype"
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$PYTHON $pythonvalidator -rule $rulefile -output_dir $tmpdir -wl "${workload}" \
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-cputype "${cputype}"
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ret=$?
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rm -rf $tmpdir
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if [ $ret -ne 0 ]; then
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echo "Metric validation return with errors. Please check metrics reported with errors."
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fi
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done
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exit $ret
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