Re: [PATCH 08/12] perf test: Replace arm spe fork test workload with sqrtloop
From: Arnaldo Carvalho de Melo
Date: Sun Nov 20 2022 - 10:39:23 EST
Em Wed, Nov 16, 2022 at 03:38:50PM -0800, Namhyung Kim escreveu:
> So that it can get rid of requirement of a compiler. I've also removed
> killall as it'll kill perf process now and run the test workload for 10
> sec instead.
8 73.81 alpine:edge : FAIL gcc version 11.2.1 20220219 (Alpine 11.2.1_git20220219)
tests/workloads/sqrtloop.c:23:3: error: ignoring return value of function declared with const attribute [-Werror,-Wunused-value]
sqrt(rand());
^~~~ ~~~~~~
1 error generated.
make[4]: *** [/git/perf-6.1.0-rc5/tools/build/Makefile.build:139: workloads] Error 2
make[3]: *** [/git/perf-6.1.0-rc5/tools/build/Makefile.build:139: tests] Error 2
I'll fix this one, probably just prepending a (void *).
- Arnaldo
> Tested-by: Leo Yan <leo.yan@xxxxxxxxxx>
> Tested-by: James Clark <james.clark@xxxxxxx>
> Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
> ---
> tools/perf/tests/shell/test_arm_spe_fork.sh | 44 +--------------------
> 1 file changed, 1 insertion(+), 43 deletions(-)
>
> diff --git a/tools/perf/tests/shell/test_arm_spe_fork.sh b/tools/perf/tests/shell/test_arm_spe_fork.sh
> index c920d3583d30..da810e1b2b9e 100755
> --- a/tools/perf/tests/shell/test_arm_spe_fork.sh
> +++ b/tools/perf/tests/shell/test_arm_spe_fork.sh
> @@ -11,14 +11,7 @@ skip_if_no_arm_spe_event() {
>
> skip_if_no_arm_spe_event || exit 2
>
> -# skip if there's no compiler
> -if ! [ -x "$(command -v cc)" ]; then
> - echo "failed: no compiler, install gcc"
> - exit 2
> -fi
> -
> -TEST_PROGRAM_SOURCE=$(mktemp /tmp/__perf_test.program.XXXXX.c)
> -TEST_PROGRAM=$(mktemp /tmp/__perf_test.program.XXXXX)
> +TEST_PROGRAM="perf test -w sqrtloop 10"
> PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
> PERF_RECORD_LOG=$(mktemp /tmp/__perf_test.log.XXXXX)
>
> @@ -27,43 +20,10 @@ cleanup_files()
> echo "Cleaning up files..."
> rm -f ${PERF_RECORD_LOG}
> rm -f ${PERF_DATA}
> - rm -f ${TEST_PROGRAM_SOURCE}
> - rm -f ${TEST_PROGRAM}
> }
>
> trap cleanup_files exit term int
>
> -# compile test program
> -cat << EOF > $TEST_PROGRAM_SOURCE
> -#include <math.h>
> -#include <stdio.h>
> -#include <stdlib.h>
> -#include <unistd.h>
> -#include <sys/wait.h>
> -
> -int workload() {
> - while (1)
> - sqrt(rand());
> - return 0;
> -}
> -
> -int main() {
> - switch (fork()) {
> - case 0:
> - return workload();
> - case -1:
> - return 1;
> - default:
> - wait(NULL);
> - }
> - return 0;
> -}
> -EOF
> -
> -echo "Compiling test program..."
> -CFLAGS="-lm"
> -cc $TEST_PROGRAM_SOURCE $CFLAGS -o $TEST_PROGRAM || exit 1
> -
> echo "Recording workload..."
> perf record -o ${PERF_DATA} -e arm_spe/period=65536/ -vvv -- $TEST_PROGRAM > ${PERF_RECORD_LOG} 2>&1 &
> PERFPID=$!
> @@ -78,8 +38,6 @@ echo Log lines after 1 second = $log1
>
> kill $PERFPID
> wait $PERFPID
> -# test program may leave an orphan process running the workload
> -killall $(basename $TEST_PROGRAM)
>
> if [ "$log0" = "$log1" ];
> then
> --
> 2.38.1.584.g0f3c55d4c2-goog
--
- Arnaldo