void
LatencyPingerI::calcStats( const int objSize )
{
// RRT values
std::vector<double> rrt;
int lostCount = 0;
for ( int i=0; i<config_.count; ++i ) {
if ( ids_[i] != -1 ) {
IceUtil::Time dt = receives_[i] - sends_[i];
if ( dt < IceUtil::Time() ) {
std::cout<<i<<" : negative time! "<<std::endl;
}
rrt.push_back( dt.toSecondsDouble() / double(config_.preload) );
// debug
std::cout<<i<<" snd "<<sends_[i].toSeconds()<<":"<<sends_[i].toMicroSeconds()-sends_[i].toSeconds()*1000000
<<" rcv "<<receives_[i].toSeconds()<<":"<<receives_[i].toMicroSeconds()-receives_[i].toSeconds()*1000000
<<" rtt "<<rrt.back()<<" "<<std::endl;
// debug
//double dd = rrt.back();
//std::cout<<"object "<<i<<" rtt: "<<rrt.back()<<"s "<<dd<<"s "<<1000.0*dd<<"ms"<<std::endl;
}
else {
++lostCount;
//std::cout<<"object "<<i<<" was lost"<<std::endl;
}
}
// check for empty vector
if ( rrt.empty() ) {
std::cout<<"No statistics. All packets lost?"<<std::endl;
return;
}
#ifdef WIN32
// under windows, times under 1ms cannot be measured apparently
for ( unsigned int i=0; i<rrt.size(); ++i ) {
if ( rrt[i] == 0 ) {
// set to sensing limit: 1ms
rrt[i] = 1.0e-3;
}
}
#endif
// find min / max RRT's
double rrtmin = *(std::min_element( rrt.begin()+1, rrt.end() ));
double rrtmax = *(std::max_element( rrt.begin()+1, rrt.end() ));
// find average RRT
double rrtavg = 0.0;
// ignore the first result, it's always an outlier (because the Serializer is adjusting its size)
for ( unsigned int i=1; i<rrt.size(); ++i ) {
rrtavg += rrt[i];
}
rrtavg /= (rrt.size()-1);
// print out results (ping style)
std::cout<<"size "<<objSize<<" bytes"<<std::endl;
std::cout<<config_.count<<" packets transmitted, "
<<config_.count-lostCount<<" received, "
<<(double)lostCount/(double)config_.count*100.00<<"% packet loss, time "<<"?"<<"ms"<<std::endl;
std::cout<<"rtt min/avg/max/mdev = "
<<rrtmin*1000.0<<"/"<<rrtavg*1000.0<<"/"<<rrtmax*1000.0<<"/? ms"<<std::endl<<std::endl;
// log results
*logfile_ <<objSize<<" "
<< (rrtmin*1000.0)<<" "<<(rrtavg*1000.0)<<" "<<(rrtmax*1000.0)<<" "<<-1.0;
// log individual rrt's
for ( unsigned int i=1; i<rrt.size(); ++i ) {
*logfile_ << " " << rrt[i]*1000.0;
// debug
//std::cout<<rrt[i]<<" ";
}
for ( unsigned int i=0; i<(config_.count-rrt.size()); ++i ) {
*logfile_<< " " << -1;
}
*logfile_ << std::endl;
std::cout<<std::endl;
std::cout<<std::endl;
}
