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-rw-r--r--3rdparty/libuv/test/benchmark-thread.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/3rdparty/libuv/test/benchmark-thread.c b/3rdparty/libuv/test/benchmark-thread.c
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index 00000000000..b37a7fd6d01
--- /dev/null
+++ b/3rdparty/libuv/test/benchmark-thread.c
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+/* 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;
+}