mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-20 08:42:06 +00:00
2532be3d21
Some shell tests compete for resources and so can't run with other tests, tag such tests. The "(exclusive)" stems from shared/exclusive to describe how the tests run as if holding a lock. For ARM/coresight tests: Suggested-by: James Clark <james.clark@linaro.org> Additional failing tests: Suggested-by: Namhyung Kim <namhyung@kernel.org> Tested-by: James Clark <james.clark@linaro.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Colin Ian King <colin.i.king@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Weilin Wang <weilin.wang@intel.com> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Veronika Molnarova <vmolnaro@redhat.com> Link: https://lore.kernel.org/r/20241025192109.132482-6-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
104 lines
2.1 KiB
Bash
Executable File
104 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
|
|
# perf record offcpu profiling tests (exclusive)
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
set -e
|
|
|
|
err=0
|
|
perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
|
|
|
|
cleanup() {
|
|
rm -f ${perfdata}
|
|
rm -f ${perfdata}.old
|
|
trap - EXIT TERM INT
|
|
}
|
|
|
|
trap_cleanup() {
|
|
cleanup
|
|
exit 1
|
|
}
|
|
trap trap_cleanup EXIT TERM INT
|
|
|
|
test_offcpu_priv() {
|
|
echo "Checking off-cpu privilege"
|
|
|
|
if [ "$(id -u)" != 0 ]
|
|
then
|
|
echo "off-cpu test [Skipped permission]"
|
|
err=2
|
|
return
|
|
fi
|
|
if perf version --build-options 2>&1 | grep HAVE_BPF_SKEL | grep -q OFF
|
|
then
|
|
echo "off-cpu test [Skipped missing BPF support]"
|
|
err=2
|
|
return
|
|
fi
|
|
}
|
|
|
|
test_offcpu_basic() {
|
|
echo "Basic off-cpu test"
|
|
|
|
if ! perf record --off-cpu -e dummy -o ${perfdata} sleep 1 2> /dev/null
|
|
then
|
|
echo "Basic off-cpu test [Failed record]"
|
|
err=1
|
|
return
|
|
fi
|
|
if ! perf evlist -i ${perfdata} | grep -q "offcpu-time"
|
|
then
|
|
echo "Basic off-cpu test [Failed no event]"
|
|
err=1
|
|
return
|
|
fi
|
|
if ! perf report -i ${perfdata} -q --percent-limit=90 | grep -E -q sleep
|
|
then
|
|
echo "Basic off-cpu test [Failed missing output]"
|
|
err=1
|
|
return
|
|
fi
|
|
echo "Basic off-cpu test [Success]"
|
|
}
|
|
|
|
test_offcpu_child() {
|
|
echo "Child task off-cpu test"
|
|
|
|
# perf bench sched messaging creates 400 processes
|
|
if ! perf record --off-cpu -e dummy -o ${perfdata} -- \
|
|
perf bench sched messaging -g 10 > /dev/null 2>&1
|
|
then
|
|
echo "Child task off-cpu test [Failed record]"
|
|
err=1
|
|
return
|
|
fi
|
|
if ! perf evlist -i ${perfdata} | grep -q "offcpu-time"
|
|
then
|
|
echo "Child task off-cpu test [Failed no event]"
|
|
err=1
|
|
return
|
|
fi
|
|
# each process waits at least for poll, so it should be more than 400 events
|
|
if ! perf report -i ${perfdata} -s comm -q -n -t ';' --percent-limit=90 | \
|
|
awk -F ";" '{ if (NF > 3 && int($3) < 400) exit 1; }'
|
|
then
|
|
echo "Child task off-cpu test [Failed invalid output]"
|
|
err=1
|
|
return
|
|
fi
|
|
echo "Child task off-cpu test [Success]"
|
|
}
|
|
|
|
|
|
test_offcpu_priv
|
|
|
|
if [ $err = 0 ]; then
|
|
test_offcpu_basic
|
|
fi
|
|
|
|
if [ $err = 0 ]; then
|
|
test_offcpu_child
|
|
fi
|
|
|
|
cleanup
|
|
exit $err
|