Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
1.7 KiB
Bash
Executable File
72 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# perf all PMU test (exclusive)
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# SPDX-License-Identifier: GPL-2.0
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err=0
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result=""
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trap_cleanup() {
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echo "Unexpected signal in ${FUNCNAME[1]}"
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echo "$result"
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exit 1
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}
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trap trap_cleanup EXIT TERM INT
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# Test all PMU events; however exclude parameterized ones (name contains '?')
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for p in $(perf list --raw-dump pmu | sed 's/[[:graph:]]\+?[[:graph:]]\+[[:space:]]//g')
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do
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echo -n "Testing $p -- "
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output=$(perf stat -e "$p" true 2>&1)
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stat_result=$?
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if echo "$output" | grep -q "$p"
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then
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# Event seen in output.
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if [ $stat_result -eq 0 ] && ! echo "$output" | grep -q "<not supported>"
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then
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# Event supported.
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echo "supported"
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continue
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elif echo "$output" | grep -q "<not supported>"
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then
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# Event not supported, so ignore.
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echo "not supported"
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continue
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elif echo "$output" | grep -q "No permission to enable"
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then
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# No permissions, so ignore.
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echo "no permission to enable"
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continue
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elif echo "$output" | grep -q "Bad event name"
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then
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# Non-existent event.
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echo "Error: Bad event name"
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echo "$output"
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err=1
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continue
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fi
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fi
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if echo "$output" | grep -q "Access to performance monitoring and observability operations is limited."
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then
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# Access is limited, so ignore.
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echo "access limited"
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continue
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fi
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# We failed to see the event and it is supported. Possibly the workload was
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# too small so retry with something longer.
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output=$(perf stat -e "$p" perf bench internals synthesize 2>&1)
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if echo "$output" | grep -q "$p"
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then
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# Event seen in output.
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echo "supported"
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continue
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fi
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echo "Error: event '$p' not printed in:"
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echo "$output"
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err=1
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done
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trap - EXIT TERM INT
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exit $err
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