Craig Tiller | 2d0f36c | 2015-02-23 23:16:17 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2015, Google Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include "test/cpp/qps/timer.h" |
| 35 | |
| 36 | #include <sys/time.h> |
| 37 | #include <sys/resource.h> |
Craig Tiller | 6af9ed0 | 2015-03-02 22:42:10 -0800 | [diff] [blame] | 38 | #include <grpc/support/time.h> |
Craig Tiller | 2d0f36c | 2015-02-23 23:16:17 -0800 | [diff] [blame] | 39 | |
| 40 | Timer::Timer() : start_(Sample()) {} |
| 41 | |
Craig Tiller | 6af9ed0 | 2015-03-02 22:42:10 -0800 | [diff] [blame] | 42 | double Timer::Now() { |
| 43 | auto ts = gpr_now(); |
| 44 | return ts.tv_sec + 1e-9 * ts.tv_nsec; |
| 45 | } |
| 46 | |
Craig Tiller | 2d0f36c | 2015-02-23 23:16:17 -0800 | [diff] [blame] | 47 | static double time_double(struct timeval* tv) { |
| 48 | return tv->tv_sec + 1e-6 * tv->tv_usec; |
| 49 | } |
| 50 | |
| 51 | Timer::Result Timer::Sample() { |
| 52 | struct rusage usage; |
| 53 | struct timeval tv; |
Craig Tiller | 2f3fa9a | 2015-02-24 17:04:22 -0800 | [diff] [blame] | 54 | gettimeofday(&tv, nullptr); |
Craig Tiller | 2d0f36c | 2015-02-23 23:16:17 -0800 | [diff] [blame] | 55 | getrusage(RUSAGE_SELF, &usage); |
| 56 | |
| 57 | Result r; |
| 58 | r.wall = time_double(&tv); |
| 59 | r.user = time_double(&usage.ru_utime); |
| 60 | r.system = time_double(&usage.ru_stime); |
| 61 | return r; |
| 62 | } |
| 63 | |
| 64 | Timer::Result Timer::Mark() { |
| 65 | Result s = Sample(); |
| 66 | Result r; |
| 67 | r.wall = s.wall - start_.wall; |
| 68 | r.user = s.user - start_.user; |
| 69 | r.system = s.system - start_.system; |
| 70 | return r; |
Craig Tiller | 2f3fa9a | 2015-02-24 17:04:22 -0800 | [diff] [blame] | 71 | } |