topic Re: vtune finalize result slow in linux in Analyzers

vtune finalize result slow in linux

nadoo — Mon, 09 May 2022 09:34:08 GMT

Hi, I have encountered some problems using your company's vtune recently, see if anyone can help me locate it. Using vtune to collect 5 minutes of data, it takes several hours to analyze (vtune 2020 and 2022 have been tried, both are slow).

Some background information:

1. The operating system is Tencent tlinux, and the virtual machine is developed based on centos7
2. The cpu is Intel(R) Xeon(R) Platinum 8255C CPU @ 2.50GHz, 8 cores
3. gcc version 7.3.1, using c++17 standard, compile optimization option O2
4. The size of the executive program is 150M, the symbol table nm |wc has 150,000 lines, and 2G shared memory is used during runtime

Use perf to view the call hotspots when vtune finalize, basically malloc and free:

Start another vtune instance to collect vtune hotspots:

thanks!

Re: vtune finalize result slow in linux

JaideepK_Intel — Tue, 10 May 2022 12:53:43 GMT

Hi,

Thank you for posting in the Intel Communities.

As you mentioned, you are using Vtune 2022.1 on Tencent tlinux, which is not present in supported operating systems. So, could you please try it on a supported operating system and let us know?

Note: Please avoid trying on deprecated operating systems.

System requirements link:

https://www.intel.com/content/www/us/en/developer/articles/system-requirements/vtune-profiler-system...

Thanks,

Jaideep

Re: vtune finalize result slow in linux

nadoo — Wed, 11 May 2022 09:18:36 GMT

Hi, according to the list of supported operating systems, centos7.2 is supported.

$ cat /etc/centos-release 
CentOS Linux release 7.2 (Final)

Thanks,

Nadoo

Re: vtune finalize result slow in linux

JaideepK_Intel — Fri, 13 May 2022 04:16:06 GMT

Hi,

We informed our team to make changes to the documentation to avoid confusion. We tried to run a 5-minute application with the command you provided and it was running fine without any issues on Centos 7, and it took a few seconds to analyze the data. Please go through the attached screen shots.

Details :

OS : Linux (Centos7 distribution)

Vtune Version: 2022.1

Could you please answer the following questions:

1. Are you trying to run your application inside of a VM?

2. Please, can you share the exact steps you followed and a sample reproducer (a sample application that is similar to the application you are trying to analyze)?

Thanks,

Jaideep

Re:vtune finalize result slow in linux

JaideepK_Intel — Wed, 18 May 2022 05:13:51 GMT

Hi,

Could you please share the details mentioned above? so we can reproduce your issue from our end.

Thanks,

Jaideep

Re:vtune finalize result slow in linux

JaideepK_Intel — Wed, 25 May 2022 11:27:34 GMT

Hi,

Could you please share the details mentioned above? so we can reproduce your issue from our end.

Thanks,

Jaideep

Re:vtune finalize result slow in linux

JaideepK_Intel — Wed, 01 Jun 2022 07:02:11 GMT

Hi,

We have not heard back from you. This thread will no longer be monitored by Intel. If you need further assistance, please post a new question.

Thanks,

Jaideep