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+ <H1>[Mageia-dev] Will this work for a build system?</H1>
+ <B>Michael Scherer</B>
+ <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Will%20this%20work%20for%20a%20build%20system%3F&In-Reply-To=%3C1285493904.32078.9.camel%40akroma.ephaone.org%3E"
+ 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 &#224; 20:56 -0700, herman a &#233;crit :
+&gt;<i> On Sat, 2010-09-25 at 10:44 -0700, R James wrote:
+</I>&gt;<i> &gt; Yeah, if I move the physical server about 2 miles. I can plug it into
+</I>&gt;<i> &gt; a better ISP.
+</I>&gt;<i> BTW, I once calculated (test plus extrapolation) how long it would take
+</I>&gt;<i> to rebuild every package in Mandriva on a low end 2 GHz Celeron server
+</I>&gt;<i> that I had available and it came to about 80 days.
+</I>&gt;<i>
+</I>&gt;<i> Usually one won't rebuild every package all in one go, but one has to do
+</I>&gt;<i> that the first time. So, a build system needs to be a big ass piece of
+</I>&gt;<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
+
+</PRE>
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