topic no call stack in Analyzers

no call stack

OCTA — Mon, 06 Jul 2020 08:17:12 GMT

Hi,

I'm trying to run a hotspot analysis on Ubuntu and I see no callstack info. I'm getting few warnings after data is collected. Screenshots attached...

Anything I'm doing wrong here? Thanks.

Re:no call stack

ChithraJ_Intel — Tue, 07 Jul 2020 06:52:50 GMT

Hi Octavian,

Thanks for reaching out to us.

Could you please share more details about the type of application[eg: Python/cpp] that you are analyzing.If it's a C++ code, use the flag -g while compiling your application so that it will build the application with the debug information. Please refer to the below link for more information about enabling Linux kernel analysis.

https://software.intel.com/content/www/us/en/develop/documentation/vtune-help/top/set-up-analysis-target/linux-targets/enabling-linux-kernel-analysis.html

Also, try to run vtune self checker script which is available in vtune installed directory. This script is to validate whether the appropriate drivers are installed and system is set up properly to collect performance data.You can find vtune-self-checker.sh script in <vtune-install-dir>/bin64. Please share the log file obtained after running self checker script with us.

Re:no call stack

RaeesaM_Intel — Fri, 10 Jul 2020 12:25:38 GMT

It looks like you are trying Hardware event based sampling.If it is, can you please confirm that you have enabled the collect stack option.Only user-mode sampling collects stacks by default.In H/W event based sampling you have to explicitly check that option.

Raeesa

Re:no call stack

RaeesaM_Intel — Wed, 15 Jul 2020 08:44:04 GMT

Hi Octavian,

Could you please let us know if your issue still persists.If it is resolved, please do let us know if we can close this thread.

Thanks

Re:no call stack

RaeesaM_Intel — Mon, 20 Jul 2020 05:41:12 GMT

Hi Octavian,

We haven't heard back anything from you. So, we are closing this case assuming that your issue is resolved . Please feel free to raise a new thread if you have any further issues.

Thank you

Raeesa