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