/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
#define NUM_THREADS (20 * 1000)
static volatile int num_threads;
static void thread_entry(void* arg) {
ASSERT(arg == (void *) 42);
num_threads++;
/* FIXME write barrier? */
}
BENCHMARK_IMPL(thread_create) {
uint64_t start_time;
double duration;
uv_thread_t tid;
int i, r;
start_time = uv_hrtime();
for (i = 0; i < NUM_THREADS; i++) {
r = uv_thread_create(&tid, thread_entry, (void *) 42);
ASSERT(r == 0);
r = uv_thread_join(&tid);
ASSERT(r == 0);
}
duration = (uv_hrtime() - start_time) / 1e9;
ASSERT(num_threads == NUM_THREADS);
printf("%d threads created in %.2f seconds (%.0f/s)\n",
NUM_THREADS, duration, NUM_THREADS / duration);
return 0;
}