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diff --git a/zarb-ml/mageia-dev/20100926/000256.html b/zarb-ml/mageia-dev/20100926/000256.html new file mode 100644 index 000000000..4ebe91ef6 --- /dev/null +++ b/zarb-ml/mageia-dev/20100926/000256.html @@ -0,0 +1,174 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [Mageia-dev] i686 must be Pentium II ? + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20i686%20must%20be%20Pentium%20II%20%3F&In-Reply-To=%3CAANLkTimsOs7MDyMSn-KOs4tr6AMbwDwAsFbO9uNWHGfR%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="000249.html"> + <LINK REL="Next" HREF="000259.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[Mageia-dev] i686 must be Pentium II ?</H1> + <B>Giuseppe Ghibò</B> + <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20i686%20must%20be%20Pentium%20II%20%3F&In-Reply-To=%3CAANLkTimsOs7MDyMSn-KOs4tr6AMbwDwAsFbO9uNWHGfR%40mail.gmail.com%3E" + TITLE="[Mageia-dev] i686 must be Pentium II ?">ghibomgx at gmail.com + </A><BR> + <I>Sun Sep 26 14:25:43 CEST 2010</I> + <P><UL> + <LI>Previous message: <A HREF="000249.html">[Mageia-dev] i686 must be Pentium II ? +</A></li> + <LI>Next message: <A HREF="000259.html">[Mageia-dev] i686 must be Pentium II ? +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#256">[ date ]</a> + <a href="thread.html#256">[ thread ]</a> + <a href="subject.html#256">[ subject ]</a> + <a href="author.html#256">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>2010/9/26 Thomas Backlund <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">tmb at iki.fi</A>> + +Giuseppe Ghibò skrev 26.9.2010 02:09: +><i> +</I>><i> +</I>><i> Not exactly. I'm not talking in just using -march=<something> but in +</I>>><i> also pushing -mfpmath=sse -msse (and maybe -msse2) , which should be +</I>>><i> much more than JUST 1-2% (1-2% is usually the benchmark +</I>>><i> tolerance)... +</I>>><i> +</I>><i> +</I>><i> Well, here is a simple fact. +</I>><i> +</I>><i> Yes, going for i686 + SSE2 would/could give some benefits, +</I>><i> +</I>><i> BUT +</I>><i> +</I>><i> It would close support for all theese: +</I>><i> - Intel i586 (all) +</I>><i> +</I>- Intel Pentium Pro +><i> - Intel Pentium II +</I>><i> - Intel Pentium III (Including some Pentium D) +</I>><i> - 32-bit AMD Athlon +</I>><i> - AMD Geode +</I>><i> - VIA C3 +</I>><i> - Transmeta Crusoe +</I>><i> +</I>><i> So, thats not an option. +</I>><i> +</I> +As I said I would see someone with such hardware, taking a CD of latest MDV +or cooker and try to install to do something and do a report. + +That reminds me also one suggestion. If someone has old hardware that not +in use anymore then could be donated to who is willing to test the latest +MDV|Mageia on it. It's not ironic (I think this is a brainstorming), or I'm +not kidding, but there could be an wiki hardware section for that. For old +hardware schools and institutes or corporations have even to pay for +dismantling: such hardware is usually recycled for: + + a) extracting gold (there are nowadays new chemical processes that found +more affordable to extract gold from old PCs than from mines) + b) avoid pollutions with the lead, plastics they contain, if thrown in the +dumpster etc. (note there isn't just the CPU, but also CRT monitors, +printers, disks, etc.) + +IIRC there is a EU law that if you buy a new PC the vendor is obeyed to +retire the old one and take care for the dismantling. + + +><i> +</I>><i> +</I>><i> Now what about only i686 + SSE then? +</I>><i> It would still close support for all theese: +</I>><i> - Intel i586 (all) +</I>><i> - Some Intel Pentium D +</I>><i> - 32-bit AMD Athlon < XP/MP +</I>><i> - AMD Geode < NX +</I>><i> - VIA C3 (Samuel* and Ezra) +</I>><i> - Transmeta Crusoe +</I>><i> +</I>><i> So, still not an option. +</I>><i> +</I>><i> +</I>><i> Now what about only i686 then? +</I>><i> It would still close support for all theese: +</I>><i> - Intel i586 (all) +</I>><i> - Some Intel Pentium D +</I>><i> - AMD Geode < NX +</I>><i> - VIA C3 (Samuel* and Ezra) +</I>><i> - Transmeta Crusoe +</I>><i> +</I>><i> So, still not an option. +</I>><i> +</I>><i> +</I>><i> And then to point out some other facts: +</I>><i> +</I>><i> Some of the benefits are already accounted for like you noted earlier: +</I>><i> +</I>><i> "Of course we shouldn't forget that the MDV had already a system for +</I>><i> providing optimized (look at /usr/lib/sse2 for instance) version of +</I>><i> libraries according to instruction set supported." +</I>><i> +</I>><i> And many applications capable of utilizing sse2 and other instruction sets +</I>><i> already have runtime detection support, so no problem there. +</I>><i> +</I>><i> +</I>><i> So, where does that leave us? +</I>><i> +</I>><i> Simple. +</I>><i> For 32bit installs, we will still support i586 as base. +</I>><i> For 64bit installs, it's simple as x86_64 is SSE2 by default. +</I>><i> +</I>><i> +</I>><i> Now, _if_ the Mageia community gets enough developers to think of _and_ +</I>><i> support a "light netbook/legacy edition", then maybe we can think of doing a +</I>><i> i586/i686 split, but for now we will use i586 as base. +</I>><i> +</I>><i> +</I>><i> And many of the users wanting i686/sse2 already have hardware capable of +</I>><i> running x86_64, so that's what they should do, as there is where the future +</I>><i> is. +</I>><i> +</I>><i> +</I>You are forgetting a midrange. Which is the midrange of not the latest +hardware but a memory around 2-4GB RAM. In that set a 32bit OS is still +consuming 30-50% fewer memory than 64bit. +As I said to complete the circle it is needed to provide on a per +--target|dialect .rpm package for the kernel as well as for the glibc. We +have just to ensure the targets and fix compilation errors (though that +wouldn't resolve the problem of bloatware distro). + +Bye +Giuseppe. +-------------- next part -------------- +An HTML attachment was scrubbed... +URL: </pipermail/mageia-dev/attachments/20100926/5b597a0c/attachment.html> +</PRE> + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000249.html">[Mageia-dev] i686 must be Pentium II ? +</A></li> + <LI>Next message: <A HREF="000259.html">[Mageia-dev] i686 must be Pentium II ? +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#256">[ date ]</a> + <a href="thread.html#256">[ thread ]</a> + <a href="subject.html#256">[ subject ]</a> + <a href="author.html#256">[ 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> |