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 9 static volatile sig_atomic_t done; 10 11 static void sighandler(int sig __maybe_unused) 12 { 13 done = 1; 14 } 15 16 static int noploop(int argc, const char **argv) 17 { 18 int sec = 1; 19 20 pthread_setname_np(pthread_self(), "perf-noploop"); 21 if (argc > 0) 22 sec = atoi(argv[0]); 23 24 signal(SIGINT, sighandler); 25 signal(SIGALRM, sighandler); 26 alarm(sec); 27 28 while (!done) 29 continue; 30 31 return 0; 32 } 33 34 DEFINE_WORKLOAD(noploop); 35