diff options
Diffstat (limited to '3rdparty/libuv/test/benchmark-loop-count.c')
-rw-r--r-- | 3rdparty/libuv/test/benchmark-loop-count.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/3rdparty/libuv/test/benchmark-loop-count.c b/3rdparty/libuv/test/benchmark-loop-count.c new file mode 100644 index 00000000000..970a94c2fec --- /dev/null +++ b/3rdparty/libuv/test/benchmark-loop-count.c @@ -0,0 +1,92 @@ +/* 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 "task.h" +#include "uv.h" + +#include <stdio.h> +#include <stdlib.h> + +#define NUM_TICKS (2 * 1000 * 1000) + +static unsigned long ticks; +static uv_idle_t idle_handle; +static uv_timer_t timer_handle; + + +static void idle_cb(uv_idle_t* handle) { + if (++ticks == NUM_TICKS) + uv_idle_stop(handle); +} + + +static void idle2_cb(uv_idle_t* handle) { + ticks++; +} + + +static void timer_cb(uv_timer_t* handle) { + uv_idle_stop(&idle_handle); + uv_timer_stop(&timer_handle); +} + + +BENCHMARK_IMPL(loop_count) { + uv_loop_t* loop = uv_default_loop(); + uint64_t ns; + + uv_idle_init(loop, &idle_handle); + uv_idle_start(&idle_handle, idle_cb); + + ns = uv_hrtime(); + uv_run(loop, UV_RUN_DEFAULT); + ns = uv_hrtime() - ns; + + ASSERT(ticks == NUM_TICKS); + + fprintf(stderr, "loop_count: %d ticks in %.2fs (%.0f/s)\n", + NUM_TICKS, + ns / 1e9, + NUM_TICKS / (ns / 1e9)); + fflush(stderr); + + MAKE_VALGRIND_HAPPY(); + return 0; +} + + +BENCHMARK_IMPL(loop_count_timed) { + uv_loop_t* loop = uv_default_loop(); + + uv_idle_init(loop, &idle_handle); + uv_idle_start(&idle_handle, idle2_cb); + + uv_timer_init(loop, &timer_handle); + uv_timer_start(&timer_handle, timer_cb, 5000, 0); + + uv_run(loop, UV_RUN_DEFAULT); + + fprintf(stderr, "loop_count: %lu ticks (%.0f ticks/s)\n", ticks, ticks / 5.0); + fflush(stderr); + + MAKE_VALGRIND_HAPPY(); + return 0; +} |