Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

113 lines (88 sloc) 3.225 kB
/* 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) {
container->async_events++;
handle->data = handle;
}
static void timer_cb(uv_timer_t* handle) {
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;
}
Jump to Line
Something went wrong with that request. Please try again.