Dear Sir,Here are the answers of your question=>1.My machine is DELL OPTIPLEX 990 MODEL which has INTEL i5 processor, 4GB RAM, 500 GB HDD with windows 7 original installed.2. I have installed ubuntu 12.04 on my system and updated kernel from 3.2.0 to 3.8.5 by compiling from source code to include lock stat, oprofile support.3. I have download oprofile from it's site and installed from there.4. oprofile version---0.9.85. I am using operf as opcontrol is not properly working --it is showing it is old , operf is recommended6.I am able to get user space data correctly, it is annotating my source file.7. when I am using opreport it is showing around 90% of samples belong to vmlinux but I am able to get details of vmlinux like in which functions of kernel it is taking time.When I am trying to profile kernel using following command in Oprofile i am getting following error,opreport --symbols /lib/modules/`uname -r`
error: no sample files found: profile specification too strictIf possible please try to help as much as possible.On Mon, Apr 22, 2013 at 8:54 PM, Maynard Johnson <firstname.lastname@example.org> wrote:
On 04/22/2013 01:48 AM, Sachin Agarwalla wrote:Please be more specific.
> Dear Sir/Madam,
> I am running some benchmarks to test Linux. I am using Oprofile tool to get profiling data. I am not able to profile the kernel or vmlinux part. I have searched in net a lot and commands listed on Oprofile site to profile kernel is not working, if possible please try to help me.
- What architecture/processor model are you running on?
- What Linux distro are you on?
- Are you using the distro-provided oprofile or are you building your own?
- What version of oprofile?
- If using oprofile 0.9.8, are you using operf or "legacy" opcontrol-based profiling?
- Are you able to collect profile data for userspace programs OK?
- Exactly what do you mean by "profiling the kernel is not working"?
> thanking you,
> waiting for your reply,
> Sachin Agarwalla
> Contact No - 08013120306
> "I am mother of honest man as well as dishonest man, always remember that if you don't have anybody ma is with you, inform this to my children" --- Sri Sri Ma Sarada Devi.
> "It is love to living being which measures your greatness."
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waiting for your reply,
Contact No - 08013120306
"I am mother of honest man as well as dishonest man, always remember that if you don't have anybody ma is with you, inform this to my children" --- Sri Sri Ma Sarada Devi.
"It is love to living being which measures your greatness."