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perf test: Record only user callchains on the "Check Arm64 callgraphs are complete in fp mode" test

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The testcase 'Check Arm64 callgraphs are complete in fp mode' wants to
see the following output:

    610 leaf
    62f parent
    648 main

However, without excluding kernel callchains, the output might look like:

	ffffc2ff40ef1b5c arch_local_irq_enable
	ffffc2ff419d032c __schedule
	ffffc2ff419d06c0 schedule
	ffffc2ff40e4da30 do_notify_resume
	ffffc2ff40e421b0 work_pending
	             610 leaf
	             62f parent
	             648 main

Adding '--user-callchains' leaves only the wanted symbols in the chain.

Fixes: cd6382d827 ("perf test arm64: Test unwinding using fame-pointer (fp) mode")
Suggested-by: German Gomez <german.gomez@arm.com>
Reviewed-by: German Gomez <german.gomez@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220614105207.26223-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Michael Petlan 2022-06-14 12:52:07 +02:00 committed by Arnaldo Carvalho de Melo
parent 67e7d77158
commit 72dcae8efd
1 changed files with 1 additions and 1 deletions
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2
tools/perf/tests/shell/test_arm_callgraph_fp.sh
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@ -43,7 +43,7 @@ CFLAGS="-g -O0 -fno-inline -fno-omit-frame-pointer"
cc $CFLAGS $TEST_PROGRAM_SOURCE -o $TEST_PROGRAM || exit 1
# Add a 1 second delay to skip samples that are not in the leaf() function
perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 -- $TEST_PROGRAM 2> /dev/null &
perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
PID=$!
echo " + Recording (PID=$PID)..."