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.
141 lines
3.7 KiB
141 lines
3.7 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) |
|
|
|
struct ctx { |
|
uv_loop_t loop; |
|
uv_thread_t thread; |
|
uv_async_t main_async; /* wake up main thread */ |
|
uv_async_t worker_async; /* wake up worker */ |
|
unsigned int nthreads; |
|
unsigned int main_sent; |
|
unsigned int main_seen; |
|
unsigned int worker_sent; |
|
unsigned int worker_seen; |
|
}; |
|
|
|
|
|
static void worker_async_cb(uv_async_t* handle) { |
|
struct ctx* ctx = container_of(handle, struct ctx, worker_async); |
|
|
|
ASSERT(0 == uv_async_send(&ctx->main_async)); |
|
ctx->worker_sent++; |
|
ctx->worker_seen++; |
|
|
|
if (ctx->worker_sent >= NUM_PINGS) |
|
uv_close((uv_handle_t*) &ctx->worker_async, NULL); |
|
} |
|
|
|
|
|
static void main_async_cb(uv_async_t* handle) { |
|
struct ctx* ctx = container_of(handle, struct ctx, main_async); |
|
|
|
ASSERT(0 == uv_async_send(&ctx->worker_async)); |
|
ctx->main_sent++; |
|
ctx->main_seen++; |
|
|
|
if (ctx->main_sent >= NUM_PINGS) |
|
uv_close((uv_handle_t*) &ctx->main_async, NULL); |
|
} |
|
|
|
|
|
static void worker(void* arg) { |
|
struct ctx* ctx = arg; |
|
ASSERT(0 == uv_async_send(&ctx->main_async)); |
|
ASSERT(0 == uv_run(&ctx->loop, UV_RUN_DEFAULT)); |
|
uv_loop_close(&ctx->loop); |
|
} |
|
|
|
|
|
static int test_async(int nthreads) { |
|
struct ctx* threads; |
|
struct ctx* ctx; |
|
uint64_t time; |
|
int i; |
|
|
|
threads = calloc(nthreads, sizeof(threads[0])); |
|
ASSERT(threads != NULL); |
|
|
|
for (i = 0; i < nthreads; i++) { |
|
ctx = threads + i; |
|
ctx->nthreads = nthreads; |
|
ASSERT(0 == uv_loop_init(&ctx->loop)); |
|
ASSERT(0 == uv_async_init(&ctx->loop, &ctx->worker_async, worker_async_cb)); |
|
ASSERT(0 == uv_async_init(uv_default_loop(), |
|
&ctx->main_async, |
|
main_async_cb)); |
|
ASSERT(0 == uv_thread_create(&ctx->thread, worker, ctx)); |
|
} |
|
|
|
time = uv_hrtime(); |
|
|
|
ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT)); |
|
|
|
for (i = 0; i < nthreads; i++) |
|
ASSERT(0 == uv_thread_join(&threads[i].thread)); |
|
|
|
time = uv_hrtime() - time; |
|
|
|
for (i = 0; i < nthreads; i++) { |
|
ctx = threads + i; |
|
ASSERT(ctx->worker_sent == NUM_PINGS); |
|
ASSERT(ctx->worker_seen == NUM_PINGS); |
|
ASSERT(ctx->main_sent == (unsigned int) NUM_PINGS); |
|
ASSERT(ctx->main_seen == (unsigned int) NUM_PINGS); |
|
} |
|
|
|
printf("async%d: %.2f sec (%s/sec)\n", |
|
nthreads, |
|
time / 1e9, |
|
fmt(NUM_PINGS / (time / 1e9))); |
|
|
|
free(threads); |
|
|
|
MAKE_VALGRIND_HAPPY(); |
|
return 0; |
|
} |
|
|
|
|
|
BENCHMARK_IMPL(async1) { |
|
return test_async(1); |
|
} |
|
|
|
|
|
BENCHMARK_IMPL(async2) { |
|
return test_async(2); |
|
} |
|
|
|
|
|
BENCHMARK_IMPL(async4) { |
|
return test_async(4); |
|
} |
|
|
|
|
|
BENCHMARK_IMPL(async8) { |
|
return test_async(8); |
|
}
|
|
|