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Re: 32bit PowerPC questions.



On Thu, 2008-06-26 at 01:00 -0400, Dave Jones wrote:
> On Wed, Jun 25, 2008 at 09:05:54AM -0400, Josh Boyer wrote:
>  > On Tue, 2008-06-24 at 21:14 -0400, Josh Boyer wrote:
>  > > On Tue, 2008-06-24 at 16:15 -0400, Dave Jones wrote:
>  > > > PPC32 kernel builds take _forever_ in the build system. They're slowing things
>  > > > down to such extent that I'm usually still waiting for them several hours
>  > > > after the other architectures have finished building.
>  > > 
>  > > Has anyone looked at _why_ they are so slow?  Do you have timing
>  > > information for a particular kernel flavor?
>  > > 
>  > > If I'm remembering correctly, local kernel builds on my G5 were quite
>  > > faster than what is in koji.  Finding out why might be a good start.
>  > 
>  > Ok, so I did a cvs checkout of the devel kernel last night and timed a
>  > simple 'make ppc'.  That built both the UP and SMP ppc kernels, with all
>  > the associated -devel and -debuginfo packages.
>  > 
>  > This was done on a dual-cpu G5 with 1.5 GiB of DRAM running F9.  Gnome,
>  > Evolution, X-Chat, and Rhythmbox were running, but it was otherwise
>  > unused.
>  > 
>  > The results:
>  > 
>  > real	117m16.886s
>  > user	133m27.480s
>  > sys	20m47.314s
>  > 
>  > How does that compare with koji builds?
> 
> The last one I timed yesterday took about 4-5 hours.

Just for ppc32 kernels, or the whole kernel koji job?

josh


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