| /* 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; |
| } |