void Draw_Time_Hists(TTree* t) {
// Draw processing time, CPU time, and latency per packet
// distributions from the input tree
if (!t) {
cout << "Invalid input tree" << endl;
return;
}
gROOT->SetStyle("Plain");
gStyle->SetOptStat(0);
gStyle->SetNdivisions(505);
gStyle->SetTitleFontSize(0.1);
if(!TString(gSystem->GetLibraries()).Contains("Proof"))
gSystem->Load("libProof.so");
TCanvas* canvas = new TCanvas("ProfHists","Profile Histograms",800,600);
canvas->Divide(3,1);
canvas->cd(1);
gPad->SetLogy();
t->Draw("fProcTime");
TH1* h = dynamic_cast<TH1*>(gROOT->FindObject("htemp"));
h->SetTitle("Processing Time per Packet");
h->GetXaxis()->SetTitle("Processing Time [s]");
gPad->Update();
TPaveText* titlepave = 0;
titlepave = dynamic_cast<TPaveText*>(gPad->GetListOfPrimitives()->FindObject("title"));
if (titlepave) {
Double_t x1ndc = titlepave->GetX1NDC();
Double_t x2ndc = titlepave->GetX2NDC();
titlepave->SetX1NDC((1.0-x2ndc+x1ndc)/2.);
titlepave->SetX2NDC((1.0+x2ndc-x1ndc)/2.);
titlepave->SetBorderSize(0);
gPad->Update();
}
gPad->Modified();
canvas->cd(2);
gPad->SetLogy();
t->Draw("fCpuTime");
h = dynamic_cast<TH1*>(gROOT->FindObject("htemp"));
h->SetTitle("CPU Time per Packet");
h->GetXaxis()->SetTitle("CPU Time [s]");
gPad->Update();
titlepave = dynamic_cast<TPaveText*>(gPad->GetListOfPrimitives()->FindObject("title"));
if (titlepave) {
Double_t x1ndc = titlepave->GetX1NDC();
Double_t x2ndc = titlepave->GetX2NDC();
titlepave->SetX1NDC((1.0-x2ndc+x1ndc)/2.);
titlepave->SetX2NDC((1.0+x2ndc-x1ndc)/2.);
titlepave->SetBorderSize(0);
gPad->Update();
}
gPad->Modified();
canvas->cd(3);
gPad->SetLogy();
t->Draw("fLatency");
h = dynamic_cast<TH1*>(gROOT->FindObject("htemp"));
h->SetTitle("Request Packet Latency");
h->GetXaxis()->SetTitle("Latency [s]");
gPad->Update();
titlepave = dynamic_cast<TPaveText*>(gPad->GetListOfPrimitives()->FindObject("title"));
if (titlepave) {
Double_t x1ndc = titlepave->GetX1NDC();
Double_t x2ndc = titlepave->GetX2NDC();
titlepave->SetX1NDC((1.0-x2ndc+x1ndc)/2.);
titlepave->SetX2NDC((1.0+x2ndc-x1ndc)/2.);
titlepave->SetBorderSize(0);
gPad->Update();
}
gPad->Modified();
}
