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vtune finalize result slow in linux

nadoo
Beginner
1,032 Views

 

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:

1.png

 

Start another vtune instance to collect vtune hotspots:

2.png

thanks!

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6 Replies
JaideepK_Intel
Moderator
993 Views

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.

 

JaideepK_Intel_0-1652187107351.png

 

 System requirements link:

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

 

Thanks,

Jaideep

 

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

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

 

nadoo_0-1652260600874.png

Thanks,

Nadoo

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JaideepK_Intel
Moderator
957 Views

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

 

JaideepK_Intel_0-1652356099698.jpeg

JaideepK_Intel_1-1652356118130.jpeg

 

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

 

 

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JaideepK_Intel
Moderator
936 Views

Hi,


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


Thanks,

Jaideep


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JaideepK_Intel
Moderator
899 Views

Hi,


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


Thanks,

Jaideep


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JaideepK_Intel
Moderator
879 Views

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


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