topic Re: Extracting call sequence info with VTune in Analyzers

Extracting call sequence info with VTune

emadshihab — Tue, 15 Jul 2008 03:17:25 GMT

Hi there,

Is there any way of extracting the call sequence info of an application with VTune or even PTU?

I mean if I code something like this:

main(){
f1();
f2();
}

versus

main(){
f2();
f1();
}

how can I get a call graph or something that can tell the difference. Is this even possible with VTune or PTU?

Thanks,

Emad

Re: Extracting call sequence info with VTune

luweichao-2004 — Thu, 17 Jul 2008 02:03:30 GMT

Re: Extracting call sequence info with VTune

Nicolae_P_Intel — Tue, 02 Sep 2008 13:21:17 GMT

I just came across your post. It may be too late but I will still vebture to answer:

in PTU you have the statistical callgraph - sampling the call stack at specified intervals - intrusion level very low

or the callgraph in vTune which will give the exact picture but the intrusion level is way higher as for the PTU statistical callgraph.

Hope this helps.

Re: Extracting call sequence info with VTune

David_A_Intel1 — Tue, 16 Sep 2008 17:14:19 GMT

The short answer is, no. Both tools build a "call tree" and do not maintain order of calls. You can "drill down" to the source code and view the order there.