source: GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Pvs.cpp @ 3242

#include "Pvs.h"
#include "Timer/PerfTimer.h"
#include "common.h"
#include <iostream>


namespace CHCDemoEngine
{

void TestPvsPerformance()
{
        //  Pvs pvs(15000);
        const int prange=10000;
        Pvs pvs[prange+1];
        // test PVS performance
        const int num = 100000000;
        const int range = 50000;
        PerfTimer timer;
        timer.Entry();

        for (int i=0; i < num; i++)
        {
                int id = (int)Random(range);
                int pid = (5*num)%prange;
                pvs[pid].Insert(id, (float)i);
                if (i%1000000 == 0) {
                        cout<<i/1000000<<" M"<<endl;
                        cout<<"size = "<<pvs[pid].GetSize()/(1000*1000)<<"M"<<endl;
                        //        cout << "bucket_count: " << pvs.entries.bucket_count() << endl;
                }
        }
        timer.Exit();


        cout<<"Pvs insert speed = "<<num/float(1000*1000*timer.TotalTime())<<
                "M entries/s\n";
        cout<<"Memory usage "<<pvs[0].GetMemoryUsage()<<" bytes"<<endl;

        int counter = 0;
        timer.Entry();
        PvsIterator it(pvs[0]);
        for (; it.HasMoreEntries(); it.Next()) 
        {
                ++ counter;
        }
        timer.Exit();

        cout<<"Pvs count = "<<counter<<endl;
        cout<<"Pvs iteration speed = "<<pvs[0].GetSize()/float(1000*1000*timer.TotalTime())<<
                "M entries/s\n";

        counter = 0;
        timer.Entry();
        PvsTimeIterator tit(pvs[0], 400);
        for (; tit.HasMoreEntries(); tit.Next()) {
                counter++;
        }
        timer.Exit();
        cout<<"Pvs time count = "<<counter<<endl;
        cout<<"Pvs iteration speed = "<<pvs[0].GetSize()/(1024*1024*timer.TotalTime())<<
                "M entries/s\n";
}

}