1*0e552da7Schristos /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2*0e552da7Schristos *
3*0e552da7Schristos * Permission is hereby granted, free of charge, to any person obtaining a copy
4*0e552da7Schristos * of this software and associated documentation files (the "Software"), to
5*0e552da7Schristos * deal in the Software without restriction, including without limitation the
6*0e552da7Schristos * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7*0e552da7Schristos * sell copies of the Software, and to permit persons to whom the Software is
8*0e552da7Schristos * furnished to do so, subject to the following conditions:
9*0e552da7Schristos *
10*0e552da7Schristos * The above copyright notice and this permission notice shall be included in
11*0e552da7Schristos * all copies or substantial portions of the Software.
12*0e552da7Schristos *
13*0e552da7Schristos * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14*0e552da7Schristos * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15*0e552da7Schristos * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16*0e552da7Schristos * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17*0e552da7Schristos * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18*0e552da7Schristos * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19*0e552da7Schristos * IN THE SOFTWARE.
20*0e552da7Schristos */
21*0e552da7Schristos
22*0e552da7Schristos #include "uv.h"
23*0e552da7Schristos #include "task.h"
24*0e552da7Schristos
25*0e552da7Schristos #include <stdio.h>
26*0e552da7Schristos #include <stdlib.h>
27*0e552da7Schristos
28*0e552da7Schristos #define NUM_THREADS (20 * 1000)
29*0e552da7Schristos
30*0e552da7Schristos static volatile int num_threads;
31*0e552da7Schristos
32*0e552da7Schristos
thread_entry(void * arg)33*0e552da7Schristos static void thread_entry(void* arg) {
34*0e552da7Schristos ASSERT(arg == (void *) 42);
35*0e552da7Schristos num_threads++;
36*0e552da7Schristos /* FIXME write barrier? */
37*0e552da7Schristos }
38*0e552da7Schristos
39*0e552da7Schristos
BENCHMARK_IMPL(thread_create)40*0e552da7Schristos BENCHMARK_IMPL(thread_create) {
41*0e552da7Schristos uint64_t start_time;
42*0e552da7Schristos double duration;
43*0e552da7Schristos uv_thread_t tid;
44*0e552da7Schristos int i, r;
45*0e552da7Schristos
46*0e552da7Schristos start_time = uv_hrtime();
47*0e552da7Schristos
48*0e552da7Schristos for (i = 0; i < NUM_THREADS; i++) {
49*0e552da7Schristos r = uv_thread_create(&tid, thread_entry, (void *) 42);
50*0e552da7Schristos ASSERT(r == 0);
51*0e552da7Schristos
52*0e552da7Schristos r = uv_thread_join(&tid);
53*0e552da7Schristos ASSERT(r == 0);
54*0e552da7Schristos }
55*0e552da7Schristos
56*0e552da7Schristos duration = (uv_hrtime() - start_time) / 1e9;
57*0e552da7Schristos
58*0e552da7Schristos ASSERT(num_threads == NUM_THREADS);
59*0e552da7Schristos
60*0e552da7Schristos printf("%d threads created in %.2f seconds (%.0f/s)\n",
61*0e552da7Schristos NUM_THREADS, duration, NUM_THREADS / duration);
62*0e552da7Schristos
63*0e552da7Schristos return 0;
64*0e552da7Schristos }
65