1 /*
2 Copyright (C) 2003-2006 MySQL AB
3 All rights reserved. Use is subject to license terms.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License, version 2.0,
7 as published by the Free Software Foundation.
8
9 This program is also distributed with certain software (including
10 but not limited to OpenSSL) that is licensed under separate terms,
11 as designated in a particular file or component or in included license
12 documentation. The authors of MySQL hereby grant you an additional
13 permission to link the program and your derivative works with the
14 separately licensed software that they have included with MySQL.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License, version 2.0, for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 */
25
26 #ifndef NDBTIMER_H
27 #define NDBTIMER_H
28
29 #include <NdbTick.h>
30 #include <NdbOut.hpp>
31
32 //
33 // Class used for measuring time and priting the results
34 //
35 // Currently measures time in milliseconds
36 //
37
38 class NdbTimer
39 {
40 public:
41
42 NdbTimer();
~NdbTimer()43 ~NdbTimer() {};
44
45 void doStart();
46 void doStop();
47 void doReset();
48 NDB_TICKS elapsedTime();
49 void printTransactionStatistics(const char* text,
50 int numTransactions,
51 int numOperations);
52 void printTestTimer(int numLoops,
53 int numRecords);
54 void printTotalTime(void);
55 private:
56 NDB_TICKS startTime;
57 NDB_TICKS stopTime;
58 };
59
NdbTimer()60 inline NdbTimer::NdbTimer(){
61 doReset();
62 }
63
doReset(void)64 inline void NdbTimer::doReset(void){
65 startTime = 0;
66 stopTime = 0;
67 }
68
doStart(void)69 inline void NdbTimer::doStart(void){
70 startTime = NdbTick_CurrentMillisecond();
71 }
72
doStop(void)73 inline void NdbTimer::doStop(void){
74 stopTime = NdbTick_CurrentMillisecond();
75 }
76
elapsedTime(void)77 inline NDB_TICKS NdbTimer::elapsedTime(void){
78 return (stopTime - startTime);
79 }
80
printTransactionStatistics(const char * text,int numTransactions,int numOperations)81 inline void NdbTimer::printTransactionStatistics(const char* text,
82 int numTransactions,
83 int numOperations){
84
85 // Convert to Uint32 in order to be able to print it to screen
86 Uint32 lapTime = (Uint32)elapsedTime();
87 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",
88 numTransactions, numTransactions*numOperations, text, lapTime,
89 ((double)lapTime/numTransactions), ((double)lapTime/(numTransactions*numOperations)), text,
90 1000.0/((double)lapTime/numOperations), 1000.0/((double)lapTime/(numTransactions*numOperations)), text);
91 }
92
93
94
printTestTimer(int numLoops,int numRecords)95 inline void NdbTimer::printTestTimer(int numLoops,
96 int numRecords){
97 // Convert to Uint32 in order to be able to print it to screen
98 Uint32 lapTime = (Uint32)elapsedTime();
99 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",
100 numLoops, numRecords, lapTime,
101 ((double)lapTime/numLoops), ((double)lapTime/(numLoops*numRecords)),
102 1000.0/((double)lapTime/numLoops), 1000.0/((double)lapTime/(numLoops*numRecords)));
103 }
104
105
printTotalTime(void)106 inline void NdbTimer::printTotalTime(void){
107 // Convert to Uint32 in order to be able to print it to screen
108 Uint32 lapTime = (Uint32)elapsedTime();
109 Uint32 secTime = lapTime/1000;
110 ndbout_c("Total time : %d seconds (%d ms)\n", secTime, lapTime);
111 }
112
113
114
115
116
117
118 #endif
119