topic Re: How to use oprofile in i.MX6 in i.MX Processors

How to use oprofile in i.MX6

ko-hey — Fri, 21 Oct 2016 06:34:41 GMT

Hi all

I'm trying to use oprofile with i.MX6.

When I try to use oprofile, it doesn't work properly.

Also I tried following command and got following message.

# operf openssl speed -evp aes-256 cbc
Your kernel's Performance Events Subsystem does not support your processor type.

As a above result, I think that i.MX6 doesn't support a oprofile.

According to the http://oprofile.sourceforge.net/doc/perf_events.html, when user get the message, user need to install OProfile 0.9.9.

Do I need to install OProfile 0.9.9 when I use oprofile with i.MX6 ?

Ko-hey

Re: How to use oprofile in i.MX6

Yuri — Fri, 21 Oct 2016 07:26:48 GMT

Hello,

According to NXP Linux RM, oprofile works on ARM9 and ARM11Cortex-A8 based platforms.

Looks like the kernel currently does not support events and oprofile properly on the imx6 platform.

Have a great day,

Yuri

------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct

Answer button. Thank you!

------------------------------------------------------------------------------

Re: How to use oprofile in i.MX6

ko-hey — Fri, 21 Oct 2016 10:16:18 GMT

Hi Yuri

Thank you for reply.

So how can user realize the oprofile ?

Is there any substituted way for i.MX6 ?

Ko-hey

Re: How to use oprofile in i.MX6

Yuri — Mon, 24 Oct 2016 03:44:22 GMT

Hello,

For i.MX6 only MMDC profiler may be used.

Regards,

Yuri.

Re: How to use oprofile in i.MX6

ko-hey — Mon, 24 Oct 2016 04:19:33 GMT

Thank you for suggestion.

How about using OProfile 0.9.7 ?

According to the following page, OProfile 0.9.7 can support cortex-A9.

OProfile - A System Profiler for Linux (News)

Ko-hey

Re: How to use oprofile in i.MX6

Yuri — Mon, 24 Oct 2016 04:59:00 GMT

Hello,

You may try OProfile 0.9.7.

Regards,

Yuri.

Re: How to use oprofile in i.MX6

ko-hey — Mon, 24 Oct 2016 05:10:26 GMT

Hi Yuri

I tried 0.9.9 and it works well.

Thank you for your cooperation.

Ko-hey

Re: How to use oprofile in i.MX6

Abi__1289 — Tue, 10 May 2022 11:58:12 GMT

Hi Ko-hey and Yuri ,

I am trying enable Oprofile (operf ..etc) for the imx6q board , In the yocto build I am getting by default

oprofile_1.3.0 version after the build .

when I am trying to use operf in kernel getting below error for almost all operf commands

Unexpected error running operf: Invalid argument

How to solve this issue ??

Thanks

ABhishek