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

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.

Michael Petlan committed 4 years ago

Commit 72dcae81 parent 67e7d771 file · +1 −1Browse files

Unified · Split

tools/perf/tests/shell/test_arm_callgraph_fp.sh+1−1

@@ -43,7 +43,7 @@ CFLAGS="-g -O0 -fno-inline -fno-omit-frame-pointer" · 42 unmodified lines
43	43	cc $CFLAGS $TEST_PROGRAM_SOURCE -o $TEST_PROGRAM \|\| exit 1
44	44
45	45	# Add a 1 second delay to skip samples that are not in the leaf() function
46		−perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 -- $TEST_PROGRAM 2> /dev/null &
	46	+perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
47	47	PID=$!
48	48
49	49	echo " + Recording (PID=$PID)..."