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 "task.h" 23 #include "uv.h" 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 28 #define NUM_TICKS (2 * 1000 * 1000) 29 30 static unsigned long ticks; 31 static uv_idle_t idle_handle; 32 static uv_timer_t timer_handle; 33 34 35 static void idle_cb(uv_idle_t* handle) { 36 if (++ticks == NUM_TICKS) 37 uv_idle_stop(handle); 38 } 39 40 41 static void idle2_cb(uv_idle_t* handle) { 42 ticks++; 43 } 44 45 46 static void timer_cb(uv_timer_t* handle) { 47 uv_idle_stop(&idle_handle); 48 uv_timer_stop(&timer_handle); 49 } 50 51 52 BENCHMARK_IMPL(loop_count) { 53 uv_loop_t* loop = uv_default_loop(); 54 uint64_t ns; 55 56 uv_idle_init(loop, &idle_handle); 57 uv_idle_start(&idle_handle, idle_cb); 58 59 ns = uv_hrtime(); 60 uv_run(loop, UV_RUN_DEFAULT); 61 ns = uv_hrtime() - ns; 62 63 ASSERT(ticks == NUM_TICKS); 64 65 fprintf(stderr, "loop_count: %d ticks in %.2fs (%.0f/s)\n", 66 NUM_TICKS, 67 ns / 1e9, 68 NUM_TICKS / (ns / 1e9)); 69 fflush(stderr); 70 71 MAKE_VALGRIND_HAPPY(); 72 return 0; 73 } 74 75 76 BENCHMARK_IMPL(loop_count_timed) { 77 uv_loop_t* loop = uv_default_loop(); 78 79 uv_idle_init(loop, &idle_handle); 80 uv_idle_start(&idle_handle, idle2_cb); 81 82 uv_timer_init(loop, &timer_handle); 83 uv_timer_start(&timer_handle, timer_cb, 5000, 0); 84 85 uv_run(loop, UV_RUN_DEFAULT); 86 87 fprintf(stderr, "loop_count: %lu ticks (%.0f ticks/s)\n", ticks, ticks / 5.0); 88 fflush(stderr); 89 90 MAKE_VALGRIND_HAPPY(); 91 return 0; 92 } 93