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>
78 lines
2.1 KiB
Bash
Executable File
78 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# perf trace summary (exclusive)
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# SPDX-License-Identifier: GPL-2.0
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# Check that perf trace works with various summary mode
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# shellcheck source=lib/probe.sh
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. "$(dirname $0)"/lib/probe.sh
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skip_if_no_perf_trace || exit 2
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[ "$(id -u)" = 0 ] || exit 2
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OUTPUT=$(mktemp /tmp/perf_trace_test.XXXXX)
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test_perf_trace() {
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args=$1
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workload="true"
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search="^\s*(open|read|close).*[0-9]+%$"
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echo "testing: perf trace ${args} -- ${workload}"
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perf trace ${args} -- ${workload} >${OUTPUT} 2>&1
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if [ $? -ne 0 ]; then
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echo "Error: perf trace ${args} failed unexpectedly"
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cat ${OUTPUT}
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rm -f ${OUTPUT}
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exit 1
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fi
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count=$(grep -E -c -m 3 "${search}" ${OUTPUT})
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if [ "${count}" != "3" ]; then
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echo "Error: cannot find enough pattern ${search} in the output"
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cat ${OUTPUT}
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rm -f ${OUTPUT}
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exit 1
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fi
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}
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# summary only for a process
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test_perf_trace "-s"
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# normal output with summary at the end
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test_perf_trace "-S"
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# summary only with an explicit summary mode
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test_perf_trace "-s --summary-mode=thread"
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# summary with normal output - total summary mode
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test_perf_trace "-S --summary-mode=total"
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# summary only for system wide - per-thread summary
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test_perf_trace "-as --summary-mode=thread --no-bpf-summary"
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# summary only for system wide - total summary mode
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test_perf_trace "-as --summary-mode=total --no-bpf-summary"
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if ! perf check feature -q bpf; then
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echo "Skip --bpf-summary tests as perf built without libbpf"
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rm -f ${OUTPUT}
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exit 2
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fi
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# summary only for system wide - per-thread summary with BPF
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test_perf_trace "-as --summary-mode=thread --bpf-summary"
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# summary only for system wide - total summary mode with BPF
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test_perf_trace "-as --summary-mode=total --bpf-summary"
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# summary with normal output for system wide - total summary mode with BPF
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test_perf_trace "-aS --summary-mode=total --bpf-summary"
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# summary only for system wide - cgroup summary mode with BPF
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test_perf_trace "-as --summary-mode=cgroup --bpf-summary"
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# summary with normal output for system wide - cgroup summary mode with BPF
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test_perf_trace "-aS --summary-mode=cgroup --bpf-summary"
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rm -f ${OUTPUT}
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