Analyzers
Support for Analyzers (Intel VTune™ Profiler, Intel Advisor, Intel Inspector)
Announcements
This community is designed for sharing of public information. Please do not share Intel or third-party confidential information here.

Amplifier XE report issue

nicolas_wang
Beginner
98 Views
Hi,
Now I have a hotspots run finished. It shows that I have a "call stack" "Fa(at up)<<-F1<-F2<-F3....." with CPU time "100 sec" meanwhile, at "Function(full)" panel, it listed "Fa". When I clicked in "call stack", it goes to "F1" instead and shows a "cpu time" about "7 sec" at a "do..while" statement. When I click "Fa" directly, it shows that at a "if (statement) Fn()" uses about "90 sec". So I'm a little puzzled. Here are my questions:

1. For bottom up view, do I need to focus on "Fa" or "F1" here? And in my program, "F1" didn't directly call "Fa". Is it possible that this will happen?

2. For top down view, "cpu time" for "Total" is always 0. Is it correct? Should I check "CPU Time: Total" for percentage only?

3. For the hotspot located, since it's a "if statement with Func call", why doesn't vtune goes down? Or does it mean that the "if satement" itself is the bottleneck?

Thanks,
Nicolas
0 Kudos
0 Replies
Reply