release/src/router/mysql/storage/ndb/test/include/NdbTimer.hpp

   1 /* Copyright (c) 2003-2005 MySQL AB
   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 as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16 #ifndef NDBTIMER_H
  17 #define NDBTIMER_H
  18
  19 #include <NdbTick.h>
  20 #include <NdbOut.hpp>
  21
  22 //
  23 // Class used for measuring time and priting the results
  24 //
  25 // Currently measures time in milliseconds
  26 //
  27
  28 class NdbTimer
  29 {
  30 public:
  31
  32   NdbTimer();
  33   ~NdbTimer() {};
  34
  35   void doStart();
  36   void doStop();
  37   void doReset();
  38   NDB_TICKS elapsedTime();
  39   void printTransactionStatistics(const char* text,
  40                                   int numTransactions,
  41                                   int numOperations);
  42   void printTestTimer(int numLoops,
  43                       int numRecords);
  44   void printTotalTime(void);
  45 private:
  46   NDB_TICKS startTime;
  47   NDB_TICKS stopTime;
  48 };
  49
  50 inline NdbTimer::NdbTimer(){
  51   doReset();
  52 }
  53
  54 inline void NdbTimer::doReset(void){
  55   startTime = 0;
  56   stopTime = 0;
  57 }
  58
  59 inline void NdbTimer::doStart(void){
  60   startTime = NdbTick_CurrentMillisecond();
  61 }
  62
  63 inline void NdbTimer::doStop(void){
  64   stopTime = NdbTick_CurrentMillisecond();
  65 }
  66
  67 inline NDB_TICKS NdbTimer::elapsedTime(void){
  68   return (stopTime - startTime);
  69 }
  70
  71 inline void NdbTimer::printTransactionStatistics(const char* text,
  72                                                  int numTransactions,
  73                                                  int numOperations){
  74
  75   // Convert to Uint32 in order to be able to print it to screen
  76   Uint32 lapTime = (Uint32)elapsedTime();
  77   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",
  78          numTransactions, numTransactions*numOperations, text, lapTime,
  79          ((double)lapTime/numTransactions), ((double)lapTime/(numTransactions*numOperations)), text,
  80          1000.0/((double)lapTime/numOperations), 1000.0/((double)lapTime/(numTransactions*numOperations)), text);
  81 }
  82
  83
  84
  85 inline void NdbTimer::printTestTimer(int numLoops,
  86                                      int numRecords){
  87   // Convert to Uint32 in order to be able to print it to screen
  88   Uint32 lapTime = (Uint32)elapsedTime();
  89   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",
  90            numLoops, numRecords, lapTime,
  91            ((double)lapTime/numLoops), ((double)lapTime/(numLoops*numRecords)),
  92            1000.0/((double)lapTime/numLoops), 1000.0/((double)lapTime/(numLoops*numRecords)));
  93 }
  94
  95
  96 inline void NdbTimer::printTotalTime(void){
  97   // Convert to Uint32 in order to be able to print it to screen
  98   Uint32 lapTime = (Uint32)elapsedTime();
  99   Uint32 secTime = lapTime/1000;
 100   ndbout_c("Total time : %d seconds (%d ms)\n", secTime, lapTime);
 101 }
 102
 103
 104
 105
 106
 107
 108 #endif