noploop.c 568 B

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #include <pthread.h>
  3. #include <stdlib.h>
  4. #include <signal.h>
  5. #include <unistd.h>
  6. #include <linux/compiler.h>
  7. #include "../tests.h"
  8. static volatile sig_atomic_t done;
  9. static void sighandler(int sig __maybe_unused)
  10. {
  11. done = 1;
  12. }
  13. static int noploop(int argc, const char **argv)
  14. {
  15. int sec = 1;
  16. pthread_setname_np(pthread_self(), "perf-noploop");
  17. if (argc > 0)
  18. sec = atoi(argv[0]);
  19. signal(SIGINT, sighandler);
  20. signal(SIGALRM, sighandler);
  21. alarm(sec);
  22. while (!done)
  23. continue;
  24. return 0;
  25. }
  26. DEFINE_WORKLOAD(noploop);