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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "uv.h"
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#include "task.h"
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#include <stdio.h>
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#include <stdlib.h>
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#define NUM_THREADS (20 * 1000)
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static volatile int num_threads;
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static void thread_entry(void* arg) {
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ASSERT(arg == (void *) 42);
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num_threads++;
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/* FIXME write barrier? */
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}
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BENCHMARK_IMPL(thread_create) {
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uint64_t start_time;
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double duration;
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uv_thread_t tid;
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int i, r;
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start_time = uv_hrtime();
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for (i = 0; i < NUM_THREADS; i++) {
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r = uv_thread_create(&tid, thread_entry, (void *) 42);
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ASSERT(r == 0);
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r = uv_thread_join(&tid;;
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ASSERT(r == 0);
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}
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duration = (uv_hrtime() - start_time) / 1e9;
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ASSERT(num_threads == NUM_THREADS);
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printf("%d threads created in %.2f seconds (%.0f/s)\n",
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NUM_THREADS, duration, NUM_THREADS / duration);
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return 0;
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}
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