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1 /* Copyright libuv contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "task.h"
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23 #include "uv.h"
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24
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25 static int done = 0;
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26 static unsigned events = 0;
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27 static unsigned result;
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28
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29 static unsigned fastrand(void) {
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30 static unsigned g = 0;
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31 g = g * 214013 + 2531011;
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32 return g;
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33 }
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34
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35 static void work_cb(uv_work_t* req) {
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36 req->data = &result;
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37 *(unsigned*)req->data = fastrand();
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38 }
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39
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40 static void after_work_cb(uv_work_t* req, int status) {
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41 events++;
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42 if (!done)
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43 ASSERT_OK(uv_queue_work(req->loop, req, work_cb, after_work_cb));
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44 }
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45
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46 static void timer_cb(uv_timer_t* handle) { done = 1; }
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47
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48 BENCHMARK_IMPL(queue_work) {
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49 char fmtbuf[2][32];
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50 uv_timer_t timer_handle;
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51 uv_work_t work;
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52 uv_loop_t* loop;
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53 int timeout;
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54
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55 loop = uv_default_loop();
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56 timeout = 5000;
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57
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58 ASSERT_OK(uv_timer_init(loop, &timer_handle));
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59 ASSERT_OK(uv_timer_start(&timer_handle, timer_cb, timeout, 0));
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60
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61 ASSERT_OK(uv_queue_work(loop, &work, work_cb, after_work_cb));
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62 ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
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63
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64 printf("%s async jobs in %.1f seconds (%s/s)\n",
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65 fmt(&fmtbuf[0], events),
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66 timeout / 1000.,
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67 fmt(&fmtbuf[1], events / (timeout / 1000.)));
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68
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69 MAKE_VALGRIND_HAPPY(loop);
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70 return 0;
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71 }
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