| /* 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" |
| |
| struct async_container { |
| unsigned async_events; |
| unsigned handles_seen; |
| uv_async_t async_handles[1024 * 1024]; |
| }; |
| |
| static volatile int done; |
| static uv_thread_t thread_id; |
| static struct async_container* container; |
| |
| |
| static unsigned fastrand(void) { |
| static unsigned g = 0; |
| g = g * 214013 + 2531011; |
| return g; |
| } |
| |
| |
| static void thread_cb(void* arg) { |
| unsigned i; |
| |
| while (done == 0) { |
| i = fastrand() % ARRAY_SIZE(container->async_handles); |
| uv_async_send(container->async_handles + i); |
| } |
| } |
| |
| |
| static void async_cb(uv_async_t* handle, int status) { |
| container->async_events++; |
| handle->data = handle; |
| } |
| |
| |
| static void timer_cb(uv_timer_t* handle, int status) { |
| unsigned i; |
| |
| done = 1; |
| ASSERT(0 == uv_thread_join(&thread_id)); |
| |
| for (i = 0; i < ARRAY_SIZE(container->async_handles); i++) { |
| uv_async_t* handle = container->async_handles + i; |
| |
| if (handle->data != NULL) |
| container->handles_seen++; |
| |
| uv_close((uv_handle_t*) handle, NULL); |
| } |
| |
| uv_close((uv_handle_t*) handle, NULL); |
| } |
| |
| |
| BENCHMARK_IMPL(million_async) { |
| uv_timer_t timer_handle; |
| uv_async_t* handle; |
| uv_loop_t* loop; |
| int timeout; |
| unsigned i; |
| |
| loop = uv_default_loop(); |
| timeout = 5000; |
| |
| container = malloc(sizeof(*container)); |
| ASSERT(container != NULL); |
| container->async_events = 0; |
| container->handles_seen = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(container->async_handles); i++) { |
| handle = container->async_handles + i; |
| ASSERT(0 == uv_async_init(loop, handle, async_cb)); |
| handle->data = NULL; |
| } |
| |
| ASSERT(0 == uv_timer_init(loop, &timer_handle)); |
| ASSERT(0 == uv_timer_start(&timer_handle, timer_cb, timeout, 0)); |
| ASSERT(0 == uv_thread_create(&thread_id, thread_cb, NULL)); |
| ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT)); |
| printf("%s async events in %.1f seconds (%s/s, %s unique handles seen)\n", |
| fmt(container->async_events), |
| timeout / 1000., |
| fmt(container->async_events / (timeout / 1000.)), |
| fmt(container->handles_seen)); |
| free(container); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |