Re: [PATCH] procfs: export context switch counts in /proc/*/stat

[Arjan van de Ven]

On Wed, 2006-12-20 at 14:38 +0000, David Wragg wrote:
> Arjan van de Ven <arjan@xxxxxxxxxxxxx> writes:
> > if all you care is the number of context switches, you can use the
> > following system tap script as well:
> >
> > http://www.fenrus.org/cstop.stp
> 
> Thanks, something similar to that might well have solved my original
> problem.  
> 
> (When I try the script, stap complains about the lack of the kernel
> debuginfo package, which of course doesn't exist for my self-built
> kernel.  After hunting around on the web for 10 minutes, I'm still no
> closer to resolving this.  But I look forward to playing with
> systemtap once I get past that problem.)

what worked for me is copying the "vmlinux" file to /boot as
/boot/vmlinux-`uname -r`

(strace the stap program to see what it tries to load)



-- 
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