Hi,
when I compile a program that include some root objects, execution speed drops significantly.
please see the following example:
#include <time.h>
#include <iostream>
using namespace std;
#include <TH2D.h>
#define USE_ROOT
int main(int argc, char* argv[]) {
#ifdef USE_ROOT
TH2D *h = new TH2D("test","test",64,0,1,64,0,1);
h->FillRandom("gaus",1000);
#endif
double r=0;
double time = clock(); // save the clock
for(long int i=0; i<100000000; i++) {
r += 0.5;
}
cout << r << endl;
cout << "Duration: " << clock() - time << endl;
return 0;
}
if in this example 'USE_ROOT' is defined the duration is nearly twice as long as without it.
(note, that only the execution of the loop is taken into account, not the histo filling)
I'm using Root 3.05/07 (win32gdk-version) on WinXP & Win2000
Compiler: MSVC++ 6
I link libCore.lib and libHist.lib to my Project
Any suggestions?
Kind Regards
Thomas Nisius
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