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Diffstat (limited to '3rdparty/libuv/test/benchmark-thread.c')
-rw-r--r-- | 3rdparty/libuv/test/benchmark-thread.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/3rdparty/libuv/test/benchmark-thread.c b/3rdparty/libuv/test/benchmark-thread.c new file mode 100644 index 00000000000..b37a7fd6d01 --- /dev/null +++ b/3rdparty/libuv/test/benchmark-thread.c @@ -0,0 +1,64 @@ +/* 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; +} |