summaryrefslogtreecommitdiffstats
path: root/zarb-ml/mageia-dev/20100926/000270.html
diff options
context:
space:
mode:
Diffstat (limited to 'zarb-ml/mageia-dev/20100926/000270.html')
-rw-r--r--zarb-ml/mageia-dev/20100926/000270.html97
1 files changed, 97 insertions, 0 deletions
diff --git a/zarb-ml/mageia-dev/20100926/000270.html b/zarb-ml/mageia-dev/20100926/000270.html
new file mode 100644
index 000000000..74c29ef5c
--- /dev/null
+++ b/zarb-ml/mageia-dev/20100926/000270.html
@@ -0,0 +1,97 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
+<HTML>
+ <HEAD>
+ <TITLE> [Mageia-dev] Will this work for a build system?
+ </TITLE>
+ <LINK REL="Index" HREF="index.html" >
+ <LINK REL="made" HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Will%20this%20work%20for%20a%20build%20system%3F&In-Reply-To=%3CAANLkTikV8nVynFOj4QsXVsRcav4zF9tG26YTd5GgsMKG%40mail.gmail.com%3E">
+ <META NAME="robots" CONTENT="index,nofollow">
+ <META http-equiv="Content-Type" content="text/html; charset=us-ascii">
+ <LINK REL="Previous" HREF="000262.html">
+ <LINK REL="Next" HREF="000247.html">
+ </HEAD>
+ <BODY BGCOLOR="#ffffff">
+ <H1>[Mageia-dev] Will this work for a build system?</H1>
+ <B>Pascal Terjan</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=%3CAANLkTikV8nVynFOj4QsXVsRcav4zF9tG26YTd5GgsMKG%40mail.gmail.com%3E"
+ TITLE="[Mageia-dev] Will this work for a build system?">pterjan at gmail.com
+ </A><BR>
+ <I>Sun Sep 26 19:08:55 CEST 2010</I>
+ <P><UL>
+ <LI>Previous message: <A HREF="000262.html">[Mageia-dev] Will this work for a build system?
+</A></li>
+ <LI>Next message: <A HREF="000247.html">[Mageia-dev] Small Mandriva problems to go thinking before Mageia Development begins
+</A></li>
+ <LI> <B>Messages sorted by:</B>
+ <a href="date.html#270">[ date ]</a>
+ <a href="thread.html#270">[ thread ]</a>
+ <a href="subject.html#270">[ subject ]</a>
+ <a href="author.html#270">[ author ]</a>
+ </LI>
+ </UL>
+ <HR>
+<!--beginarticle-->
+<PRE>On Sun, Sep 26, 2010 at 02:38, Michael Scherer &lt;<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">misc at zarb.org</A>&gt; wrote:
+&gt;<i> Le samedi 25 septembre 2010 &#224; 20:56 -0700, herman a &#233;crit :
+</I>&gt;&gt;<i> On Sat, 2010-09-25 at 10:44 -0700, R James wrote:
+</I>&gt;&gt;<i> &gt; Yeah, if I move the physical server about 2 miles. I can plug it into
+</I>&gt;&gt;<i> &gt; a better ISP.
+</I>&gt;&gt;<i> BTW, I once calculated (test plus extrapolation) how long it would take
+</I>&gt;&gt;<i> to rebuild every package in Mandriva on a low end 2 GHz Celeron server
+</I>&gt;&gt;<i> that I had available and it came to about 80 days.
+</I>&gt;&gt;<i>
+</I>&gt;&gt;<i> Usually one won't rebuild every package all in one go, but one has to do
+</I>&gt;&gt;<i> that the first time. &#160;So, a build system needs to be a big ass piece of
+</I>&gt;&gt;<i> iron, otherwise it will be frustrating to use.
+</I>&gt;<i>
+</I>&gt;<i> Well, for the moment, Mandriva has ( for i586 ) 5 servers with 4 core at
+</I>&gt;<i> 2.8 ghz
+</I>&gt;<i> ( fast scsi disk, 2 g of ram ). So by your estimate and using similar
+</I>&gt;<i> hardware ( which date back to 3/4 years ago ), it would take
+</I>&gt;<i> 80/(5*4*1.5) = 3 days
+</I>&gt;<i>
+</I>&gt;<i> now, that doesn't take in account several factors, like :
+</I>&gt;<i> - others bottleneck ( memory, i/o )
+</I>&gt;<i> - overhead of using iurt and chroot regeneration
+</I>&gt;<i> - overhead of uploading to the mirror
+</I>&gt;<i> - overhead of a non linear repartition ( kde, kernel, openoffice,
+</I>&gt;<i> sagemath, etc, take more time ).
+</I>
+Using a nice machine (24 'cpu', actually 2 * 6 cores + HT, 12GB RAM),
+using few GB tmpfs for the build, I rebuilt main with iurt for one
+arch in less than a day.
+This can be optimized (not extracting chroot each time will improve
+time for small packages, building several in parallel may improve as
+nothing requires 24 cpus 99% of the time and we don't have disk seek
+issue anyway with tmpfs) but that's to give an idea.
+
+The upload to the mirror part can be done in parallel so it does not
+slow the overall process.
+</PRE>
+
+
+
+
+
+
+
+<!--endarticle-->
+ <HR>
+ <P><UL>
+ <!--threads-->
+ <LI>Previous message: <A HREF="000262.html">[Mageia-dev] Will this work for a build system?
+</A></li>
+ <LI>Next message: <A HREF="000247.html">[Mageia-dev] Small Mandriva problems to go thinking before Mageia Development begins
+</A></li>
+ <LI> <B>Messages sorted by:</B>
+ <a href="date.html#270">[ date ]</a>
+ <a href="thread.html#270">[ thread ]</a>
+ <a href="subject.html#270">[ subject ]</a>
+ <a href="author.html#270">[ author ]</a>
+ </LI>
+ </UL>
+
+<hr>
+<a href="https://www.mageia.org/mailman/listinfo/mageia-dev">More information about the Mageia-dev
+mailing list</a><br>
+</body></html>