From: Marco Colombo <marco@esi.it>
To: Austin Gonyou <austin@digitalroadkill.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [BUG] 2.4 VM sucks. Again
Date: Mon, 27 May 2002 11:24:55 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.44.0205271119430.5096-100000@Megathlon.ESI> (raw)
In-Reply-To: <1022261405.9617.39.camel@UberGeek>
On 24 May 2002, Austin Gonyou wrote:
> On Fri, 2002-05-24 at 11:31, Martin J. Bligh wrote:
> > >> I'm not sure exactly what Roy was doing, but we were taking a machine
> > >> with 16Gb of RAM, and reading files into the page cache - I think we built up
> > >> 8 million buffer_heads according to slabinfo ... on a P4 they're 128 bytes each,
> > >> on a P3 96 bytes.
> > >
> > > The buffer heads one would make sense. I only test on realistic sized systems.
> >
> > Well, it'll still waste valuable memory there too, though you may not totally kill it.
> >
> > > Once you pass 4Gb there are so many problems its not worth using x86 in the
> > > long run
> >
> I assume that you mean by "not worth using x86" you're referring to say,
> degraded performance over other platforms? Well...if you talk
> price/performance, using x86 is perfect in those terms since you can buy
> more boxes and have a more fluid architecture, rather than building a
> monolithic system. Monolithic systems aren't always the best. Just look
> at Fermilab!
Uh? There are many alpha-based clusters out there. Why do you think
!x86 == monolithic?
.TM.
--
____/ ____/ /
/ / / Marco Colombo
___/ ___ / / Technical Manager
/ / / ESI s.r.l.
_____/ _____/ _/ Colombo@ESI.it
next prev parent reply other threads:[~2002-05-27 9:25 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-23 13:11 [BUG] 2.4 VM sucks. Again Roy Sigurd Karlsbakk
2002-05-23 14:54 ` Martin J. Bligh
2002-05-23 16:29 ` Roy Sigurd Karlsbakk
2002-05-23 16:46 ` Martin J. Bligh
2002-05-24 10:04 ` Roy Sigurd Karlsbakk
2002-05-24 14:35 ` Martin J. Bligh
2002-05-24 19:32 ` Andrew Morton
2002-05-30 10:29 ` Roy Sigurd Karlsbakk
2002-05-30 19:28 ` Andrew Morton
2002-05-31 16:56 ` Roy Sigurd Karlsbakk
2002-05-31 18:19 ` Andrea Arcangeli
2002-06-18 11:26 ` Roy Sigurd Karlsbakk
2002-06-18 19:42 ` Andrew Morton
2002-06-19 11:26 ` Roy Sigurd Karlsbakk
2002-07-10 7:50 ` [2.4 BUFFERING BUG] (was [BUG] 2.4 VM sucks. Again) Roy Sigurd Karlsbakk
2002-07-10 8:05 ` Andrew Morton
2002-07-10 8:14 ` Roy Sigurd Karlsbakk
2002-08-28 9:28 ` [BUG+FIX] 2.4 buggercache sucks Roy Sigurd Karlsbakk
2002-08-28 15:30 ` Martin J. Bligh
2002-08-29 8:00 ` Roy Sigurd Karlsbakk
2002-08-29 13:42 ` Martin J. Bligh
2002-08-30 9:21 ` Roy Sigurd Karlsbakk
2002-08-30 17:19 ` Martin J. Bligh
2002-08-30 18:49 ` Andrew Morton
2002-05-24 15:11 ` [BUG] 2.4 VM sucks. Again Alan Cox
2002-05-24 15:53 ` Martin J. Bligh
2002-05-24 16:14 ` Alan Cox
2002-05-24 16:31 ` Martin J. Bligh
2002-05-24 17:30 ` Austin Gonyou
2002-05-24 17:43 ` Martin J. Bligh
2002-05-24 18:03 ` Austin Gonyou
2002-05-24 18:10 ` Martin J. Bligh
2002-05-24 18:29 ` 2.4 Kernel Perf discussion [Was Re: [BUG] 2.4 VM sucks. Again] Austin Gonyou
2002-05-24 19:01 ` Stephen Frost
2002-05-27 9:24 ` Marco Colombo [this message]
2002-05-27 22:24 ` [BUG] 2.4 VM sucks. Again Austin Gonyou
2002-05-27 23:08 ` Austin Gonyou
2002-05-27 11:12 ` Roy Sigurd Karlsbakk
2002-05-27 14:31 ` Alan Cox
2002-05-27 13:43 ` Roy Sigurd Karlsbakk
2002-05-23 16:03 ` Johannes Erdfelt
2002-05-23 16:33 ` Roy Sigurd Karlsbakk
2002-05-23 22:50 ` Luigi Genoni
2002-05-24 11:53 ` Roy Sigurd Karlsbakk
2002-05-23 18:12 ` jlnance
2002-05-24 10:36 ` Roy Sigurd Karlsbakk
2002-05-31 21:21 ` Andrea Arcangeli
2002-06-01 12:36 ` Roy Sigurd Karlsbakk
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