[Mageia-dev] Will this work for a build system?

Sun Sep 26 11:38:24 CEST 2010

Le samedi 25 septembre 2010 à 20:56 -0700, herman a écrit :
+> On Sat, 2010-09-25 at 10:44 -0700, R James wrote:
+> > Yeah, if I move the physical server about 2 miles. I can plug it into
+> > a better ISP.
+> BTW, I once calculated (test plus extrapolation) how long it would take
+> to rebuild every package in Mandriva on a low end 2 GHz Celeron server
+> that I had available and it came to about 80 days.  
+>
+> Usually one won't rebuild every package all in one go, but one has to do
+> that the first time.  So, a build system needs to be a big ass piece of
+> iron, otherwise it will be frustrating to use.
+
+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
+
+