[12/12] perf test: Replace data symbol test workload with datasym
Commit Message
So that it can get rid of requirement of a compiler.
$ sudo ./perf test -v 109
109: Test data symbol :
--- start ---
test child forked, pid 844526
Recording workload...
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 0.354 MB /tmp/__perf_test.perf.data.GFeZO (4847 samples) ]
Cleaning up files...
test child finished with 0
---- end ----
Test data symbol: Ok
Cc: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/tests/shell/test_data_symbol.sh | 29 +---------------------
1 file changed, 1 insertion(+), 28 deletions(-)
@@ -11,13 +11,7 @@ skip_if_no_mem_event() {
skip_if_no_mem_event || exit 2
-# skip if there's no compiler
-if ! [ -x "$(command -v cc)" ]; then
- echo "skip: no compiler, install gcc"
- exit 2
-fi
-
-TEST_PROGRAM=$(mktemp /tmp/__perf_test.program.XXXXX)
+TEST_PROGRAM="perf test -w datasym"
PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
check_result() {
@@ -45,31 +39,10 @@ cleanup_files()
{
echo "Cleaning up files..."
rm -f ${PERF_DATA}
- rm -f ${TEST_PROGRAM}
}
trap cleanup_files exit term int
-# compile test program
-echo "Compiling test program..."
-cat << EOF | cc -o ${TEST_PROGRAM} -x c -
-typedef struct _buf {
- char data1;
- char reserved[55];
- char data2;
-} buf __attribute__((aligned(64)));
-
-static buf buf1;
-
-int main(void) {
- for (;;) {
- buf1.data1++;
- buf1.data2 += buf1.data1;
- }
- return 0;
-}
-EOF
-
echo "Recording workload..."
# perf mem/c2c internally uses IBS PMU on AMD CPU which doesn't support