^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2015 Davidlohr Bueso.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) /* For the CLR_() macros */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <pthread.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "../util/stat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <subcmd/parse-options.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/zalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <internal/cpumap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <perf/cpumap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "bench.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "futex.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <sys/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct worker {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) int tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) u_int32_t *futex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) pthread_t thread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned long ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static u_int32_t global_futex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static struct worker *worker;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static unsigned int nsecs = 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static bool silent = false, multi = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static bool done = false, fshared = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static unsigned int nthreads = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static int futex_flag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static pthread_mutex_t thread_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static unsigned int threads_starting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static struct stats throughput_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static pthread_cond_t thread_parent, thread_worker;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static const struct option options[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) OPT_UINTEGER('r', "runtime", &nsecs, "Specify runtime (in seconds)"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) OPT_BOOLEAN( 'M', "multi", &multi, "Use multiple futexes"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) OPT_BOOLEAN( 'S', "shared", &fshared, "Use shared futexes instead of private ones"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) OPT_END()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static const char * const bench_futex_lock_pi_usage[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) "perf bench futex lock-pi <options>",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static void print_summary(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) unsigned long avg = avg_stats(&throughput_stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) double stddev = stddev_stats(&throughput_stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) printf("%sAveraged %ld operations/sec (+- %.2f%%), total secs = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) !silent ? "\n" : "", avg, rel_stddev_stats(stddev, avg),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) (int)bench__runtime.tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static void toggle_done(int sig __maybe_unused,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) siginfo_t *info __maybe_unused,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void *uc __maybe_unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /* inform all threads that we're done for the day */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) done = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) gettimeofday(&bench__end, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) timersub(&bench__end, &bench__start, &bench__runtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static void *workerfn(void *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct worker *w = (struct worker *) arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) unsigned long ops = w->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) pthread_mutex_lock(&thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) threads_starting--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if (!threads_starting)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) pthread_cond_signal(&thread_parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) pthread_cond_wait(&thread_worker, &thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) pthread_mutex_unlock(&thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) again:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) ret = futex_lock_pi(w->futex, NULL, futex_flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (ret) { /* handle lock acquisition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (!silent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) warn("thread %d: Could not lock pi-lock for %p (%d)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) w->tid, w->futex, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (done)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) goto again;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) usleep(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) ret = futex_unlock_pi(w->futex, futex_flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (ret && !silent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) warn("thread %d: Could not unlock pi-lock for %p (%d)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) w->tid, w->futex, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) ops++; /* account for thread's share of work */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) } while (!done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) w->ops = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static void create_threads(struct worker *w, pthread_attr_t thread_attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct perf_cpu_map *cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) cpu_set_t cpuset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) threads_starting = nthreads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) for (i = 0; i < nthreads; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) worker[i].tid = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (multi) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) worker[i].futex = calloc(1, sizeof(u_int32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (!worker[i].futex)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) err(EXIT_FAILURE, "calloc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) worker[i].futex = &global_futex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) CPU_ZERO(&cpuset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) CPU_SET(cpu->map[i % cpu->nr], &cpuset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (pthread_attr_setaffinity_np(&thread_attr, sizeof(cpu_set_t), &cpuset))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) err(EXIT_FAILURE, "pthread_attr_setaffinity_np");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (pthread_create(&w[i].thread, &thread_attr, workerfn, &worker[i]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) err(EXIT_FAILURE, "pthread_create");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) int bench_futex_lock_pi(int argc, const char **argv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct sigaction act;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) pthread_attr_t thread_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct perf_cpu_map *cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) argc = parse_options(argc, argv, options, bench_futex_lock_pi_usage, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (argc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) cpu = perf_cpu_map__new(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (!cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) err(EXIT_FAILURE, "calloc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) memset(&act, 0, sizeof(act));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) sigfillset(&act.sa_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) act.sa_sigaction = toggle_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) sigaction(SIGINT, &act, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (!nthreads)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) nthreads = cpu->nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) worker = calloc(nthreads, sizeof(*worker));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (!worker)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) err(EXIT_FAILURE, "calloc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (!fshared)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) futex_flag = FUTEX_PRIVATE_FLAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) printf("Run summary [PID %d]: %d threads doing pi lock/unlock pairing for %d secs.\n\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) getpid(), nthreads, nsecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) init_stats(&throughput_stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) pthread_mutex_init(&thread_lock, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) pthread_cond_init(&thread_parent, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) pthread_cond_init(&thread_worker, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) threads_starting = nthreads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) pthread_attr_init(&thread_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) gettimeofday(&bench__start, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) create_threads(worker, thread_attr, cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) pthread_attr_destroy(&thread_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) pthread_mutex_lock(&thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) while (threads_starting)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) pthread_cond_wait(&thread_parent, &thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) pthread_cond_broadcast(&thread_worker);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) pthread_mutex_unlock(&thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) sleep(nsecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) toggle_done(0, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) for (i = 0; i < nthreads; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) ret = pthread_join(worker[i].thread, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) err(EXIT_FAILURE, "pthread_join");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* cleanup & report results */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) pthread_cond_destroy(&thread_parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) pthread_cond_destroy(&thread_worker);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) pthread_mutex_destroy(&thread_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) for (i = 0; i < nthreads; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) unsigned long t = bench__runtime.tv_sec > 0 ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) worker[i].ops / bench__runtime.tv_sec : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) update_stats(&throughput_stats, t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) if (!silent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) printf("[thread %3d] futex: %p [ %ld ops/sec ]\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) worker[i].tid, worker[i].futex, t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (multi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) zfree(&worker[i].futex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) print_summary();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) free(worker);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) perf_cpu_map__put(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) usage_with_options(bench_futex_lock_pi_usage, options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) exit(EXIT_FAILURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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