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perf test: Replace arm callgraph fp test workload with leafloop 

So that it can get rid of requirement of a compiler.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221116233854.1596378-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2022-11-16 15:38:48 -08:00 committed by Arnaldo Carvalho de Melo
parent 41522f7442
commit 7cf0b4a73a
1 changed files with 3 additions and 31 deletions
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34
tools/perf/tests/shell/test_arm_callgraph_fp.sh
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@ -4,44 +4,16 @@
lscpu | grep -q "aarch64" || exit 2
if ! [ -x "$(command -v cc)" ]; then
echo "failed: no compiler, install gcc"
exit 2
fi
PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
TEST_PROGRAM_SOURCE=$(mktemp /tmp/test_program.XXXXX.c)
TEST_PROGRAM=$(mktemp /tmp/test_program.XXXXX)
TEST_PROGRAM="perf test -w leafloop"
cleanup_files()
{
rm -f $PERF_DATA
rm -f $TEST_PROGRAM_SOURCE
rm -f $TEST_PROGRAM
}
trap cleanup_files exit term int
cat << EOF > $TEST_PROGRAM_SOURCE
int a = 0;
void leaf(void) {
for (;;)
a += a;
}
void parent(void) {
leaf();
}
int main(void) {
parent();
return 0;
}
EOF
echo " + Compiling test program ($TEST_PROGRAM)..."
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 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
PID=$!
@ -58,11 +30,11 @@ wait $PID
# program
# 728 leaf
# 753 parent
# 76c main
# 76c leafloop
# ...
perf script -i $PERF_DATA -F comm,ip,sym | head -n4
perf script -i $PERF_DATA -F comm,ip,sym | head -n4 | \
awk '{ if ($2 != "") sym[i++] = $2 } END { if (sym[0] != "leaf" ||
sym[1] != "parent" ||
sym[2] != "main") exit 1 }'
sym[2] != "leafloop") exit 1 }'