1 /* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is also distributed with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have included with MySQL.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #ifndef NDBTIMER_H
25 #define NDBTIMER_H
26
27 #include <NdbTick.h>
28 #include <NdbOut.hpp>
29
30 //
31 // Class used for measuring time and printing the results
32 //
33 // Currently measures time in milliseconds
34 //
35
36 class NdbTimer
37 {
38 public:
39
40 NdbTimer();
~NdbTimer()41 ~NdbTimer() {}
42
43 void doStart();
44 void doStop();
45 void doReset();
46 Uint64 elapsedTime() const;
47 void printTransactionStatistics(const char* text,
48 int numTransactions,
49 int numOperations);
50 void printTestTimer(int numLoops,
51 int numRecords);
52 void printTotalTime(void);
53 private:
54 NDB_TICKS startTicks;
55 NDB_TICKS stopTicks;
56 };
57
NdbTimer()58 inline NdbTimer::NdbTimer(){
59 doReset();
60 }
61
doReset(void)62 inline void NdbTimer::doReset(void){
63 NdbTick_Invalidate(&startTicks);
64 NdbTick_Invalidate(&stopTicks);
65 }
66
doStart(void)67 inline void NdbTimer::doStart(void){
68 startTicks = NdbTick_getCurrentTicks();
69 }
70
doStop(void)71 inline void NdbTimer::doStop(void){
72 stopTicks = NdbTick_getCurrentTicks();
73 }
74
elapsedTime(void) const75 inline Uint64 NdbTimer::elapsedTime(void) const {
76 return NdbTick_Elapsed(startTicks,stopTicks).milliSec();
77 }
78
printTransactionStatistics(const char * text,int numTransactions,int numOperations)79 inline void NdbTimer::printTransactionStatistics(const char* text,
80 int numTransactions,
81 int numOperations){
82
83 // Convert to Uint32 in order to be able to print it to screen
84 Uint32 lapTime = (Uint32)elapsedTime();
85 ndbout_c("%i transactions, %i %s total time = %d ms\nAverage %f ms/transaction, %f ms/%s.\n%f transactions/second, %f %ss/second.\n",
86 numTransactions, numTransactions*numOperations, text, lapTime,
87 ((double)lapTime/numTransactions), ((double)lapTime/(numTransactions*numOperations)), text,
88 1000.0/((double)lapTime/numOperations), 1000.0/((double)lapTime/(numTransactions*numOperations)), text);
89 }
90
91
92
printTestTimer(int numLoops,int numRecords)93 inline void NdbTimer::printTestTimer(int numLoops,
94 int numRecords){
95 // Convert to Uint32 in order to be able to print it to screen
96 Uint32 lapTime = (Uint32)elapsedTime();
97 ndbout_c("%i loop * %i records, total time = %d ms\nAverage %f ms/loop, %f ms/record.\n%f looop/second, %f records/second.\n",
98 numLoops, numRecords, lapTime,
99 ((double)lapTime/numLoops), ((double)lapTime/(numLoops*numRecords)),
100 1000.0/((double)lapTime/numLoops), 1000.0/((double)lapTime/(numLoops*numRecords)));
101 }
102
103
printTotalTime(void)104 inline void NdbTimer::printTotalTime(void){
105 // Convert to Uint32 in order to be able to print it to screen
106 Uint32 lapTime = (Uint32)elapsedTime();
107 Uint32 secTime = lapTime/1000;
108 ndbout_c("Total time : %d seconds (%d ms)\n", secTime, lapTime);
109 }
110
111
112
113
114
115
116 #endif
117