Combined Locks&Waits and CPU Hotspots View

Milian_W_ · ‎12-12-2013

Hello all,

is it possible to configure a combined Locks&Waits and CPU Hotspots view in VTune?

What I imagine is a view which shows the complete wall time structure of the callgraph profile data. The numbers show how long a given function resides on the stack. The colors of the bars (currently they show whether the CPU is over/undercommitted) would instead distinguish between CPU bound hotspot and Lock/Wait time. I.e.:

The advantages I see are that I don't have to switch between the two views. Furthermore, I could potentially find "hidden hotspots" which are due to a high combined count of wait and CPU time in a function.

So, is this somehow possible to configure in VTune now? If not, could this maybe integrated in future versions of the tool?

Thanks

Vitaly_S_Intel · ‎12-13-2013

Have you tried "Hotspots by Thread Concurrency" viewpoint?

Click on the link "Change" on the top of result to choose it. Use "Function / Call Stack" to see hotspots with CPU and Wait time metrics.

Milian_W_ · ‎12-13-2013

Indeed, that comes very close to it - thanks. Its only lacking the combined column though, which one could use in the Caller/Callee view to sort such that for these contrived results:

[plain]
function | cpu time | wait time | combined
foo | 5 | 1 | 6
bar | 1 | 6 | 6
asdf | 4 | 4 | 8
[/plain]

But its certainly very good already - thank you for the hint!