32bit PowerPC questions.
Josh Boyer
jwboyer at gmail.com
Thu Jun 26 11:35:47 UTC 2008
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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