linux/tools/perf/tests/shell/stat_all_pfm.sh
James Clark 2f5d370dec perf test: Change all remaining #!/bin/sh to #!/bin/bash
There are 43 instances of posix shell tests and 35 instances of bash. To
give us a single consistent language for testing in, replace
all #!/bin/sh to #!/bin/bash. Common sources that are included in both
different shells will now work as expected. And we no longer have to fix
up bashisms that appear to work when someone's system has sh symlinked
to bash, but don't work on other systems that have both shells
installed.

Although we could have chosen sh, it's not backwards compatible so it
wouldn't be possible to bulk convert without re-writing the existing
bash tests.

Choosing bash also gives us some nicer features including 'local'
variable definitions and regexes in if statements that are already
widely used in the tests.

It's not expected that there are any users with only sh available due to
the large number of bash tests that exist.

Discussed in relation to running shellcheck here:
https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/

Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-26 10:31:05 -07:00

52 lines
1.2 KiB
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Executable File

#!/bin/bash
# perf all libpfm4 events test
# SPDX-License-Identifier: GPL-2.0
if perf version --build-options | grep HAVE_LIBPFM | grep -q OFF
then
echo "Skipping, no libpfm4 support"
exit 2
fi
err=0
for p in $(perf list --raw-dump pfm)
do
if echo "$p" | grep -q unc_
then
echo "Skipping uncore event '$p' that may require additional options."
continue
fi
echo "Testing $p"
result=$(perf stat --pfm-events "$p" true 2>&1)
x=$?
if echo "$result" | grep -q "failed to parse event $p : invalid or missing unit mask"
then
continue
fi
if test "$x" -ne "0"
then
echo "Unexpected exit code '$x'"
err=1
fi
if ! echo "$result" | grep -q "$p" && ! echo "$result" | grep -q "<not supported>"
then
# We failed to see the event and it is supported. Possibly the workload was
# too small so retry with something longer.
result=$(perf stat --pfm-events "$p" perf bench internals synthesize 2>&1)
x=$?
if test "$x" -ne "0"
then
echo "Unexpected exit code '$x'"
err=1
fi
if ! echo "$result" | grep -q "$p"
then
echo "Event '$p' not printed in:"
echo "$result"
err=1
fi
fi
done
exit "$err"