mirror of
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109 lines
3.1 KiB
C++
109 lines
3.1 KiB
C++
/* Copyright (C) 2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef NDBTIMER_H
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#define NDBTIMER_H
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#include <NdbTick.h>
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#include <NdbOut.hpp>
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//
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// Class used for measuring time and priting the results
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//
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// Currently measures time in milliseconds
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//
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class NdbTimer
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{
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public:
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NdbTimer();
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~NdbTimer() {};
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void doStart();
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void doStop();
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void doReset();
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NDB_TICKS elapsedTime();
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void printTransactionStatistics(const char* text,
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int numTransactions,
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int numOperations);
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void printTestTimer(int numLoops,
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int numRecords);
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void printTotalTime(void);
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private:
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NDB_TICKS startTime;
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NDB_TICKS stopTime;
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};
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inline NdbTimer::NdbTimer(){
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doReset();
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}
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inline void NdbTimer::doReset(void){
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startTime = 0;
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stopTime = 0;
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}
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inline void NdbTimer::doStart(void){
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startTime = NdbTick_CurrentMillisecond();
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}
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inline void NdbTimer::doStop(void){
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stopTime = NdbTick_CurrentMillisecond();
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}
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inline NDB_TICKS NdbTimer::elapsedTime(void){
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return (stopTime - startTime);
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}
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inline void NdbTimer::printTransactionStatistics(const char* text,
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int numTransactions,
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int numOperations){
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// Convert to Uint32 in order to be able to print it to screen
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Uint32 lapTime = (Uint32)elapsedTime();
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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",
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numTransactions, numTransactions*numOperations, text, lapTime,
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((double)lapTime/numTransactions), ((double)lapTime/(numTransactions*numOperations)), text,
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1000.0/((double)lapTime/numOperations), 1000.0/((double)lapTime/(numTransactions*numOperations)), text);
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}
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inline void NdbTimer::printTestTimer(int numLoops,
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int numRecords){
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// Convert to Uint32 in order to be able to print it to screen
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Uint32 lapTime = (Uint32)elapsedTime();
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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",
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numLoops, numRecords, lapTime,
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((double)lapTime/numLoops), ((double)lapTime/(numLoops*numRecords)),
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1000.0/((double)lapTime/numLoops), 1000.0/((double)lapTime/(numLoops*numRecords)));
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}
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inline void NdbTimer::printTotalTime(void){
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// Convert to Uint32 in order to be able to print it to screen
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Uint32 lapTime = (Uint32)elapsedTime();
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Uint32 secTime = lapTime/1000;
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ndbout_c("Total time : %d seconds (%d ms)\n", secTime, lapTime);
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}
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#endif
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