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From: Andrea Arcangeli <andrea@suse.de>
To: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc: jlnance@intrex.net, linux-kernel@vger.kernel.org
Subject: Re: [BUG] 2.4 VM sucks. Again
Date: Fri, 31 May 2002 23:21:33 +0200	[thread overview]
Message-ID: <20020531212133.GA1172@dualathlon.random> (raw)
In-Reply-To: <200205231311.g4NDBO613726@mail.pronto.tv> <20020523141243.A1178@tricia.dyndns.org> <200205241036.g4OAaXR28572@mail.pronto.tv>

On Fri, May 24, 2002 at 12:36:32PM +0200, Roy Sigurd Karlsbakk wrote:
> On Thursday 23 May 2002 20:12, jlnance@intrex.net wrote:
> > On Thu, May 23, 2002 at 03:11:24PM +0200, Roy Sigurd Karlsbakk wrote:
> > > Starting up 30 downloads from a custom HTTP server (or Tux - or Apache -
> > > doesn't matter), file size is 3-6GB, download speed = ~4.5Mbps. After
> > > some time the kernel (a) goes bOOM (out of memory) if not having any
> > > swap, or (b) goes gong swapping out anything it can.
> >
> > Does this work if the client and the server are on the same machine?  It
> > would make reproducing this a lot easier if it only required 1 machine.
> 
> I guess it'd work fine with only one machine, as IMO, the problem must be the 
> kernel not releasing buffers

too much variable.

Also keep in mind if you grow the socket buffer to hundred mbyte on an
highmem machine the zone-normal will finish too fast and you may run out
of memory. 2.4.19pre9aa2 in such case should at least return -ENOMEM and
not deadlock.

Andrea

  reply	other threads:[~2002-05-31 21:22 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               ` [BUG] 2.4 VM sucks. Again Marco Colombo
2002-05-27 22:24                 ` 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 [this message]
2002-06-01 12:36       ` Roy Sigurd Karlsbakk

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