Commit e011979e authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf test: Replace arm spe fork test workload with sqrtloop 



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.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Tested-by: default avatarJames Clark <james.clark@arm.com>
Tested-by: default avatarLeo Yan <leo.yan@linaro.org>
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/20221116233854.1596378-9-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 39281709

tools/perf/tests/shell/test_arm_spe_fork.sh

+1 −43
Original line number Diff line number Diff line
@@ -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