/root/doris/be/src/util/stopwatch.hpp
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1 | | // Licensed to the Apache Software Foundation (ASF) under one |
2 | | // or more contributor license agreements. See the NOTICE file |
3 | | // distributed with this work for additional information |
4 | | // regarding copyright ownership. The ASF licenses this file |
5 | | // to you under the Apache License, Version 2.0 (the |
6 | | // "License"); you may not use this file except in compliance |
7 | | // with the License. You may obtain a copy of the License at |
8 | | // |
9 | | // http://www.apache.org/licenses/LICENSE-2.0 |
10 | | // |
11 | | // Unless required by applicable law or agreed to in writing, |
12 | | // software distributed under the License is distributed on an |
13 | | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
14 | | // KIND, either express or implied. See the License for the |
15 | | // specific language governing permissions and limitations |
16 | | // under the License. |
17 | | // This file is copied from |
18 | | // https://github.com/apache/impala/blob/branch-2.9.0/be/src/util/stopwatch.hpp |
19 | | // and modified by Doris |
20 | | |
21 | | #pragma once |
22 | | |
23 | | #include <time.h> |
24 | | |
25 | | namespace doris { |
26 | | |
27 | | // Stop watch for reporting elapsed time in nanosec based on CLOCK_MONOTONIC. |
28 | | // It is as fast as Rdtsc. |
29 | | // It is also accurate because it not affected by cpu frequency changes and |
30 | | // it is not affected by user setting the system clock. |
31 | | // CLOCK_MONOTONIC represents monotonic time since some unspecified starting point. |
32 | | // It is good for computing elapsed time. |
33 | | template <clockid_t Clock> |
34 | | class CustomStopWatch { |
35 | | public: |
36 | 396k | CustomStopWatch(bool auto_start = false) { |
37 | 396k | _total_time = 0; |
38 | 396k | _running = false; |
39 | 396k | if (auto_start) { |
40 | 0 | start(); |
41 | 0 | } |
42 | 396k | } _ZN5doris15CustomStopWatchILi1EEC2Eb Line | Count | Source | 36 | 396k | CustomStopWatch(bool auto_start = false) { | 37 | 396k | _total_time = 0; | 38 | 396k | _running = false; | 39 | 396k | if (auto_start) { | 40 | 0 | start(); | 41 | 0 | } | 42 | 396k | } |
_ZN5doris15CustomStopWatchILi3EEC2Eb Line | Count | Source | 36 | 42 | CustomStopWatch(bool auto_start = false) { | 37 | 42 | _total_time = 0; | 38 | 42 | _running = false; | 39 | 42 | if (auto_start) { | 40 | 0 | start(); | 41 | 0 | } | 42 | 42 | } |
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43 | | |
44 | | timespec start_time() const { return _start; } |
45 | | |
46 | 396k | void start() { |
47 | 396k | if (!_running) { |
48 | 395k | clock_gettime(Clock, &_start); |
49 | 395k | _running = true; |
50 | 395k | } |
51 | 396k | } _ZN5doris15CustomStopWatchILi1EE5startEv Line | Count | Source | 46 | 396k | void start() { | 47 | 396k | if (!_running) { | 48 | 395k | clock_gettime(Clock, &_start); | 49 | 395k | _running = true; | 50 | 395k | } | 51 | 396k | } |
_ZN5doris15CustomStopWatchILi3EE5startEv Line | Count | Source | 46 | 27 | void start() { | 47 | 27 | if (!_running) { | 48 | 27 | clock_gettime(Clock, &_start); | 49 | 27 | _running = true; | 50 | 27 | } | 51 | 27 | } |
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52 | | |
53 | 3.43k | void stop() { |
54 | 3.43k | if (_running) { |
55 | 2.39k | _total_time += elapsed_time(); |
56 | 2.39k | _running = false; |
57 | 2.39k | } |
58 | 3.43k | } _ZN5doris15CustomStopWatchILi1EE4stopEv Line | Count | Source | 53 | 3.42k | void stop() { | 54 | 3.42k | if (_running) { | 55 | 2.38k | _total_time += elapsed_time(); | 56 | 2.38k | _running = false; | 57 | 2.38k | } | 58 | 3.42k | } |
_ZN5doris15CustomStopWatchILi3EE4stopEv Line | Count | Source | 53 | 10 | void stop() { | 54 | 10 | if (_running) { | 55 | 10 | _total_time += elapsed_time(); | 56 | 10 | _running = false; | 57 | 10 | } | 58 | 10 | } |
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59 | | |
60 | | // Restarts the timer. Returns the elapsed time until this point. |
61 | 3.00k | uint64_t reset() { |
62 | 3.00k | uint64_t ret = elapsed_time(); |
63 | | |
64 | 3.00k | if (_running) { |
65 | 3.00k | clock_gettime(Clock, &_start); |
66 | 3.00k | } |
67 | | |
68 | 3.00k | return ret; |
69 | 3.00k | } _ZN5doris15CustomStopWatchILi1EE5resetEv Line | Count | Source | 61 | 3.00k | uint64_t reset() { | 62 | 3.00k | uint64_t ret = elapsed_time(); | 63 | | | 64 | 3.00k | if (_running) { | 65 | 3.00k | clock_gettime(Clock, &_start); | 66 | 3.00k | } | 67 | | | 68 | 3.00k | return ret; | 69 | 3.00k | } |
Unexecuted instantiation: _ZN5doris15CustomStopWatchILi3EE5resetEv |
70 | | |
71 | | // Returns time in nanosecond. |
72 | 381k | uint64_t elapsed_time() const { |
73 | 381k | if (!_running) { |
74 | 2.56k | return _total_time; |
75 | 2.56k | } |
76 | | |
77 | 378k | timespec end; |
78 | 378k | clock_gettime(Clock, &end); |
79 | 378k | return (end.tv_sec - _start.tv_sec) * 1000L * 1000L * 1000L + |
80 | 378k | (end.tv_nsec - _start.tv_nsec); |
81 | 381k | } _ZNK5doris15CustomStopWatchILi1EE12elapsed_timeEv Line | Count | Source | 72 | 381k | uint64_t elapsed_time() const { | 73 | 381k | if (!_running) { | 74 | 2.55k | return _total_time; | 75 | 2.55k | } | 76 | | | 77 | 378k | timespec end; | 78 | 378k | clock_gettime(Clock, &end); | 79 | 378k | return (end.tv_sec - _start.tv_sec) * 1000L * 1000L * 1000L + | 80 | 378k | (end.tv_nsec - _start.tv_nsec); | 81 | 381k | } |
_ZNK5doris15CustomStopWatchILi3EE12elapsed_timeEv Line | Count | Source | 72 | 37 | uint64_t elapsed_time() const { | 73 | 37 | if (!_running) { | 74 | 10 | return _total_time; | 75 | 10 | } | 76 | | | 77 | 27 | timespec end; | 78 | 27 | clock_gettime(Clock, &end); | 79 | 27 | return (end.tv_sec - _start.tv_sec) * 1000L * 1000L * 1000L + | 80 | 27 | (end.tv_nsec - _start.tv_nsec); | 81 | 37 | } |
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82 | | |
83 | | // Return time in microseconds |
84 | 0 | uint64_t elapsed_time_microseconds() const { return elapsed_time() / 1000; } |
85 | | |
86 | | // Return time in milliseconds |
87 | 167 | uint64_t elapsed_time_milliseconds() const { return elapsed_time() / 1000 / 1000; } |
88 | | |
89 | | // Returns time in nanosecond. |
90 | 0 | int64_t elapsed_time_seconds(timespec end) const { |
91 | 0 | if (!_running) { |
92 | 0 | return _total_time / 1000L / 1000L / 1000L; |
93 | 0 | } |
94 | 0 | return end.tv_sec - _start.tv_sec; |
95 | 0 | } |
96 | | |
97 | | private: |
98 | | timespec _start; |
99 | | uint64_t _total_time; // in nanosec |
100 | | bool _running; |
101 | | }; |
102 | | |
103 | | // Stop watch for reporting elapsed time in nanosec based on CLOCK_MONOTONIC. |
104 | | // It is as fast as Rdtsc. |
105 | | // It is also accurate because it not affected by cpu frequency changes and |
106 | | // it is not affected by user setting the system clock. |
107 | | // CLOCK_MONOTONIC represents monotonic time since some unspecified starting point. |
108 | | // It is good for computing elapsed time. |
109 | | using MonotonicStopWatch = CustomStopWatch<CLOCK_MONOTONIC>; |
110 | | |
111 | | // Stop watch for reporting elapsed nanosec based on CLOCK_THREAD_CPUTIME_ID. |
112 | | using ThreadCpuStopWatch = CustomStopWatch<CLOCK_THREAD_CPUTIME_ID>; |
113 | | |
114 | | } // namespace doris |