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Diffstat (limited to 'tools/perf/bench/epoll-ctl.c')
-rw-r--r--tools/perf/bench/epoll-ctl.c90
1 files changed, 55 insertions, 35 deletions
diff --git a/tools/perf/bench/epoll-ctl.c b/tools/perf/bench/epoll-ctl.c
index 0c0a6e824934..d66d852b90e4 100644
--- a/tools/perf/bench/epoll-ctl.c
+++ b/tools/perf/bench/epoll-ctl.c
@@ -5,7 +5,7 @@
* Benchmark the various operations allowed for epoll_ctl(2).
* The idea is to concurrently stress a single epoll instance
*/
-#ifdef HAVE_EVENTFD
+#ifdef HAVE_EVENTFD_SUPPORT
/* For the CLR_() macros */
#include <string.h>
#include <pthread.h>
@@ -14,17 +14,19 @@
#include <inttypes.h>
#include <signal.h>
#include <stdlib.h>
+#include <unistd.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/epoll.h>
#include <sys/eventfd.h>
+#include <perf/cpumap.h>
+#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include "bench.h"
-#include "cpumap.h"
#include <err.h>
@@ -33,7 +35,6 @@
static unsigned int nthreads = 0;
static unsigned int nsecs = 8;
-struct timeval start, end, runtime;
static bool done, __verbose, randomize;
/*
@@ -58,10 +59,10 @@ static unsigned int nested = 0;
/* amount of fds to monitor, per thread */
static unsigned int nfds = 64;
-static pthread_mutex_t thread_lock;
+static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats all_stats[EPOLL_NR_OPS];
-static pthread_cond_t thread_parent, thread_worker;
+static struct cond thread_parent, thread_worker;
struct worker {
int tid;
@@ -92,8 +93,8 @@ static void toggle_done(int sig __maybe_unused,
{
/* inform all threads that we're done for the day */
done = true;
- gettimeofday(&end, NULL);
- timersub(&end, &start, &runtime);
+ gettimeofday(&bench__end, NULL);
+ timersub(&bench__end, &bench__start, &bench__runtime);
}
static void nest_epollfd(void)
@@ -106,7 +107,7 @@ static void nest_epollfd(void)
printinfo("Nesting level(s): %d\n", nested);
epollfdp = calloc(nested, sizeof(int));
- if (!epollfd)
+ if (!epollfdp)
err(EXIT_FAILURE, "calloc");
for (i = 0; i < nested; i++) {
@@ -174,12 +175,12 @@ static void *workerfn(void *arg)
struct timespec ts = { .tv_sec = 0,
.tv_nsec = 250 };
- pthread_mutex_lock(&thread_lock);
+ mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
- pthread_cond_signal(&thread_parent);
- pthread_cond_wait(&thread_worker, &thread_lock);
- pthread_mutex_unlock(&thread_lock);
+ cond_signal(&thread_parent);
+ cond_wait(&thread_worker, &thread_lock);
+ mutex_unlock(&thread_lock);
/* Let 'em loose */
do {
@@ -219,16 +220,23 @@ static void init_fdmaps(struct worker *w, int pct)
}
}
-static int do_threads(struct worker *worker, struct cpu_map *cpu)
+static int do_threads(struct worker *worker, struct perf_cpu_map *cpu)
{
pthread_attr_t thread_attr, *attrp = NULL;
- cpu_set_t cpuset;
+ cpu_set_t *cpuset;
unsigned int i, j;
- int ret;
+ int ret = 0;
+ int nrcpus;
+ size_t size;
if (!noaffinity)
pthread_attr_init(&thread_attr);
+ nrcpus = cpu__max_cpu().cpu;
+ cpuset = CPU_ALLOC(nrcpus);
+ BUG_ON(!cpuset);
+ size = CPU_ALLOC_SIZE(nrcpus);
+
for (i = 0; i < nthreads; i++) {
struct worker *w = &worker[i];
@@ -252,22 +260,28 @@ static int do_threads(struct worker *worker, struct cpu_map *cpu)
init_fdmaps(w, 50);
if (!noaffinity) {
- CPU_ZERO(&cpuset);
- CPU_SET(cpu->map[i % cpu->nr], &cpuset);
+ CPU_ZERO_S(size, cpuset);
+ CPU_SET_S(perf_cpu_map__cpu(cpu, i % perf_cpu_map__nr(cpu)).cpu,
+ size, cpuset);
- ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cpu_set_t), &cpuset);
- if (ret)
+ ret = pthread_attr_setaffinity_np(&thread_attr, size, cpuset);
+ if (ret) {
+ CPU_FREE(cpuset);
err(EXIT_FAILURE, "pthread_attr_setaffinity_np");
+ }
attrp = &thread_attr;
}
ret = pthread_create(&w->thread, attrp, workerfn,
(void *)(struct worker *) w);
- if (ret)
+ if (ret) {
+ CPU_FREE(cpuset);
err(EXIT_FAILURE, "pthread_create");
+ }
}
+ CPU_FREE(cpuset);
if (!noaffinity)
pthread_attr_destroy(&thread_attr);
@@ -301,7 +315,7 @@ int bench_epoll_ctl(int argc, const char **argv)
int j, ret = 0;
struct sigaction act;
struct worker *worker = NULL;
- struct cpu_map *cpu;
+ struct perf_cpu_map *cpu;
struct rlimit rl, prevrl;
unsigned int i;
@@ -311,11 +325,12 @@ int bench_epoll_ctl(int argc, const char **argv)
exit(EXIT_FAILURE);
}
+ memset(&act, 0, sizeof(act));
sigfillset(&act.sa_mask);
act.sa_sigaction = toggle_done;
sigaction(SIGINT, &act, NULL);
- cpu = cpu_map__new(NULL);
+ cpu = perf_cpu_map__new_online_cpus();
if (!cpu)
goto errmem;
@@ -332,7 +347,7 @@ int bench_epoll_ctl(int argc, const char **argv)
/* default to the number of CPUs */
if (!nthreads)
- nthreads = cpu->nr;
+ nthreads = perf_cpu_map__nr(cpu);
worker = calloc(nthreads, sizeof(*worker));
if (!worker)
@@ -353,21 +368,21 @@ int bench_epoll_ctl(int argc, const char **argv)
for (i = 0; i < EPOLL_NR_OPS; i++)
init_stats(&all_stats[i]);
- pthread_mutex_init(&thread_lock, NULL);
- pthread_cond_init(&thread_parent, NULL);
- pthread_cond_init(&thread_worker, NULL);
+ mutex_init(&thread_lock);
+ cond_init(&thread_parent);
+ cond_init(&thread_worker);
threads_starting = nthreads;
- gettimeofday(&start, NULL);
+ gettimeofday(&bench__start, NULL);
do_threads(worker, cpu);
- pthread_mutex_lock(&thread_lock);
+ mutex_lock(&thread_lock);
while (threads_starting)
- pthread_cond_wait(&thread_parent, &thread_lock);
- pthread_cond_broadcast(&thread_worker);
- pthread_mutex_unlock(&thread_lock);
+ cond_wait(&thread_parent, &thread_lock);
+ cond_broadcast(&thread_worker);
+ mutex_unlock(&thread_lock);
sleep(nsecs);
toggle_done(0, NULL, NULL);
@@ -380,9 +395,9 @@ int bench_epoll_ctl(int argc, const char **argv)
}
/* cleanup & report results */
- pthread_cond_destroy(&thread_parent);
- pthread_cond_destroy(&thread_worker);
- pthread_mutex_destroy(&thread_lock);
+ cond_destroy(&thread_parent);
+ cond_destroy(&thread_worker);
+ mutex_destroy(&thread_lock);
for (i = 0; i < nthreads; i++) {
unsigned long t[EPOLL_NR_OPS];
@@ -406,8 +421,13 @@ int bench_epoll_ctl(int argc, const char **argv)
print_summary();
close(epollfd);
+ perf_cpu_map__put(cpu);
+ for (i = 0; i < nthreads; i++)
+ free(worker[i].fdmap);
+
+ free(worker);
return ret;
errmem:
err(EXIT_FAILURE, "calloc");
}
-#endif // HAVE_EVENTFD
+#endif // HAVE_EVENTFD_SUPPORT
generated by cgit (git 2.34.1) at 2025-12-25 01:01:54 +0000