Files
linux/tools/perf/tests/shell/c2c.sh
Ian Rogers ac881007c4 perf tests c2c: Add a basic c2c
Add basic c2c record and report testing to gain some coverage.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-12-03 11:07:46 -08:00

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#!/bin/bash
# perf c2c tests
# SPDX-License-Identifier: GPL-2.0
set -e
err=0
perfdata=$(mktemp /tmp/__perf_c2c_test.perf.data.XXXXX)
cleanup() {
rm -f "${perfdata}"
rm -f "${perfdata}".old
trap - EXIT TERM INT
}
trap_cleanup() {
echo "Unexpected signal in ${FUNCNAME[1]}"
cleanup
exit 1
}
trap trap_cleanup EXIT TERM INT
check_c2c_support() {
# Check if perf c2c record works.
if ! perf c2c record -o "${perfdata}" -- true > /dev/null 2>&1 ; then
return 1
fi
return 0
}
test_c2c_record_report() {
echo "c2c record and report test"
if ! check_c2c_support ; then
echo "c2c record and report test [Skipped: perf c2c record failed (possibly missing hardware support)]"
err=2
return
fi
# Run a workload that does some memory operations.
if ! perf c2c record -o "${perfdata}" -- perf test -w datasym 1 > /dev/null 2>&1 ; then
echo "c2c record and report test [Skipped: perf c2c record failed during workload]"
return
fi
if ! perf c2c report -i "${perfdata}" --stdio > /dev/null 2>&1 ; then
echo "c2c record and report test [Failed: report failed]"
err=1
return
fi
if ! perf c2c report -i "${perfdata}" -N > /dev/null 2>&1 ; then
echo "c2c record and report test [Failed: report -N failed]"
err=1
return
fi
echo "c2c record and report test [Success]"
}
test_c2c_record_report
cleanup
exit $err