mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
3.2 KiB
119 lines
3.2 KiB
/* 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"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#define NUM_PINGS (1000 * 1000)
|
|
#define ACCESS_ONCE(type, var) (*(volatile type*) &(var))
|
|
|
|
static unsigned int callbacks;
|
|
static volatile int done;
|
|
|
|
static const char running[] = "running";
|
|
static const char stop[] = "stop";
|
|
static const char stopped[] = "stopped";
|
|
|
|
|
|
static void async_cb(uv_async_t* handle, int status) {
|
|
if (++callbacks == NUM_PINGS) {
|
|
/* Tell the pummel thread to stop. */
|
|
ACCESS_ONCE(const char*, handle->data) = stop;
|
|
|
|
/* Wait for for the pummel thread to acknowledge that it has stoppped. */
|
|
while (ACCESS_ONCE(const char*, handle->data) != stopped)
|
|
uv_sleep(0);
|
|
|
|
uv_close((uv_handle_t*) handle, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
static void pummel(void* arg) {
|
|
uv_async_t* handle = (uv_async_t*) arg;
|
|
|
|
while (ACCESS_ONCE(const char*, handle->data) == running)
|
|
uv_async_send(handle);
|
|
|
|
/* Acknowledge that we've seen handle->data change. */
|
|
ACCESS_ONCE(const char*, handle->data) = stopped;
|
|
}
|
|
|
|
|
|
static int test_async_pummel(int nthreads) {
|
|
uv_thread_t* tids;
|
|
uv_async_t handle;
|
|
uint64_t time;
|
|
int i;
|
|
|
|
tids = calloc(nthreads, sizeof(tids[0]));
|
|
ASSERT(tids != NULL);
|
|
|
|
ASSERT(0 == uv_async_init(uv_default_loop(), &handle, async_cb));
|
|
ACCESS_ONCE(const char*, handle.data) = running;
|
|
|
|
for (i = 0; i < nthreads; i++)
|
|
ASSERT(0 == uv_thread_create(tids + i, pummel, &handle));
|
|
|
|
time = uv_hrtime();
|
|
|
|
ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
|
|
|
|
time = uv_hrtime() - time;
|
|
done = 1;
|
|
|
|
for (i = 0; i < nthreads; i++)
|
|
ASSERT(0 == uv_thread_join(tids + i));
|
|
|
|
printf("async_pummel_%d: %s callbacks in %.2f seconds (%s/sec)\n",
|
|
nthreads,
|
|
fmt(callbacks),
|
|
time / 1e9,
|
|
fmt(callbacks / (time / 1e9)));
|
|
|
|
free(tids);
|
|
|
|
MAKE_VALGRIND_HAPPY();
|
|
return 0;
|
|
}
|
|
|
|
|
|
BENCHMARK_IMPL(async_pummel_1) {
|
|
return test_async_pummel(1);
|
|
}
|
|
|
|
|
|
BENCHMARK_IMPL(async_pummel_2) {
|
|
return test_async_pummel(2);
|
|
}
|
|
|
|
|
|
BENCHMARK_IMPL(async_pummel_4) {
|
|
return test_async_pummel(4);
|
|
}
|
|
|
|
|
|
BENCHMARK_IMPL(async_pummel_8) {
|
|
return test_async_pummel(8);
|
|
}
|
|
|