Mailinglist Archive: opensuse-programming (8 mails)

[Volker Poplawski <volker@xxxxxxxxxxxx>]

On 03/20/2011 05:47 PM, Marcus Meissner wrote:
> On Sun, Mar 20, 2011 at 09:34:24AM -0400, Jerry Feldman wrote:
> > On 03/19/2011 02:21 PM, Per Jessen wrote:
> > > I'm trying to optimize some assembler code for which I'm measuring
> > > runtime over a<slice of data>.  Is there any easy (in C or assembler )
> > > access to counters for pipeline stalls and cache misses available?  At
> > > some point I'd also like to look at context switches, although I'm not
> > > sure how I might affect those.
> > Valgrind can give you some of what you want. I've also used Intel's
> > Vtune. The Linux Trace Toolkit may also be useful. But, I think for
> > things like pipeline stalls you would need one of the profiling tools.
>
> oprofile is also at this kind of lowlevel.

Thanks for the hint to oprofile. Looks interessting.

oprofile requires the uncompressed image of the running kernel to work: 
vmlinux

Does anybody know how to get a such an image on opensuse?



--
To unsubscribe, e-mail: opensuse-programming+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse-programming+help@xxxxxxxxxxxx