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Ross Burton | 2 Feb 2005 12:23
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Callgraph and 2.6.10

Hi,

I'd like to try callgraph with some apps I am running on kernel 2.6.10.
As I understand it I still need to apply the callgraph patch to my
kernel, but the patch on the web site [1] doesn't apply cleanly.  Is
this still a required patch, or is there a newer patch available?

Thanks,
Ross

[1] http://oprofile.sourceforge.net/patches/callgraph-0.3.diff

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Ross Burton | 2 Feb 2005 13:19
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Re: Callgraph and 2.6.10

Ross Burton <ross <at> burtonini.com> writes:
> I'd like to try callgraph with some apps I am running on kernel 2.6.10.
> As I understand it I still need to apply the callgraph patch to my
> kernel, but the patch on the web site [1] doesn't apply cleanly.  Is
> this still a required patch, or is there a newer patch available?

I just found the 2.6.9 patch in the list archives, but that also doesn't apply.
 I've hacked it a bit and am currently compiling a kernel to see if it works, if
it does I'll post it here.

Ross

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Ross Burton | 2 Feb 2005 16:56
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Re: Callgraph and 2.6.10

> I just found the 2.6.9 patch in the list archives, but that also doesn't apply.
> I've hacked it a bit and am currently compiling a kernel to see if it works, if
> it does I'll post it here.

I think I've got a working callgraph now (updated arch/i386/timer_int.c)
but now I'm seeing strange results:

  self     %        cum.     %        child    %        symbol name
  0              0  0              0  2519     145.2710 main
  ...

I'm not sure now main() managed to take 145% of the execution time...  is this
a bug or am I just totally misunderstanding the report?

Ross

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Ross Burton | 2 Feb 2005 17:34
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Re: Callgraph and 2.6.10

Hi,

Last post for a while, I promise.   The patch I used is at
http://www.burtonini.com/computing/callgraph-0.4-2.6.10.diff

Ross

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