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<H1>[Mageia-dev] Will this work for a build system?</H1>
<B>Michael Scherer</B>
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TITLE="[Mageia-dev] Will this work for a build system?">misc at zarb.org
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<I>Sun Sep 26 11:38:24 CEST 2010</I>
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<PRE>Le samedi 25 septembre 2010 à 20:56 -0700, herman a écrit :
><i> On Sat, 2010-09-25 at 10:44 -0700, R James wrote:
</I>><i> > Yeah, if I move the physical server about 2 miles. I can plug it into
</I>><i> > a better ISP.
</I>><i> BTW, I once calculated (test plus extrapolation) how long it would take
</I>><i> to rebuild every package in Mandriva on a low end 2 GHz Celeron server
</I>><i> that I had available and it came to about 80 days.
</I>><i>
</I>><i> Usually one won't rebuild every package all in one go, but one has to do
</I>><i> that the first time. So, a build system needs to be a big ass piece of
</I>><i> iron, otherwise it will be frustrating to use.
</I>
Well, for the moment, Mandriva has ( for i586 ) 5 servers with 4 core at
2.8 ghz
( fast scsi disk, 2 g of ram ). So by your estimate and using similar
hardware ( which date back to 3/4 years ago ), it would take
80/(5*4*1.5) = 3 days
now, that doesn't take in account several factors, like :
- others bottleneck ( memory, i/o )
- overhead of using iurt and chroot regeneration
- overhead of uploading to the mirror
- overhead of a non linear repartition ( kde, kernel, openoffice,
sagemath, etc, take more time ).
--
Michael Scherer
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