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 30static volatile int num_threads; 31 32 33static void thread_entry(void* arg) { 34 ASSERT(arg == (void *) 42); 35 num_threads++; 36 /* FIXME write barrier? */ 37} 38 39 40BENCHMARK_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(r == 0); 51 52 r = uv_thread_join(&tid); 53 ASSERT(r == 0); 54 } 55 56 duration = (uv_hrtime() - start_time) / 1e9; 57 58 ASSERT(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