Commit 0b8ff0ba authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf test: Replace record test workload with thloop 



So that it can get rid of requirements for a compiler.

  $ sudo ./perf test -v 92
   92: perf record tests                                               :
  --- start ---
  test child forked, pid 740204
  Basic --per-thread mode test
  Basic --per-thread mode test [Success]
  Register capture test
  Register capture test [Success]
  Basic --system-wide mode test
  Basic --system-wide mode test [Success]
  Basic target workload test
  Basic target workload test [Success]
  test child finished with 0
  ---- end ----
  perf record tests: Ok

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Tested-by: default avatarJames 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: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221116233854.1596378-5-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 69b35292

tools/perf/tests/shell/record.sh

+3 −56
Original line number Diff line number Diff line
@@ -9,17 +9,13 @@ shelldir=$(dirname "$0") 


err=0

perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)

testprog=$(mktemp /tmp/__perf_test.prog.XXXXXX)

testprog="perf test -w thloop"

testsym="test_loop"



cleanup() {

  rm -rf "${perfdata}"

  rm -rf "${perfdata}".old



  if [ "${testprog}" != "true" ]; then

    rm -f "${testprog}"

  fi



  trap - EXIT TERM INT

}
@@ -29,53 +25,6 @@ trap_cleanup() { 
}

trap trap_cleanup EXIT TERM INT



build_test_program() {

  if ! [ -x "$(command -v cc)" ]; then

    # No CC found. Fall back to 'true'

    testprog=true

    testsym=true

    return

  fi



  echo "Build a test program"

  cat <<EOF | cc -o ${testprog} -xc - -pthread

#include <stdio.h>

#include <stdlib.h>

#include <pthread.h>



void test_loop(void) {

  volatile int count = 1000000;



  while (count--)

    continue;

}



void *thfunc(void *arg) {

  int forever = *(int *)arg;



  do {

    test_loop();

  } while (forever);



  return NULL;

}



int main(int argc, char *argv[]) {

  pthread_t th;

  int forever = 0;



  if (argc > 1)

    forever = atoi(argv[1]);



  pthread_create(&th, NULL, thfunc, &forever);

  test_loop();

  pthread_join(th, NULL);



  return 0;

}

EOF

}



test_per_thread() {

  echo "Basic --per-thread mode test"

  if ! perf record -o /dev/null --quiet ${testprog} 2> /dev/null
@@ -96,8 +45,8 @@ test_per_thread() { 
    return

  fi



  # run the test program in background (forever)

  ${testprog} 1 &

  # run the test program in background (for 30 seconds)

  ${testprog} 30 &

  TESTPID=$!



  rm -f "${perfdata}"
@@ -205,8 +154,6 @@ test_workload() { 
  echo "Basic target workload test [Success]"

}



build_test_program



test_per_thread

test_register_capture

test_system_wide