From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: fabio@chromium.com (Fabio Riccardi)
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.5-ac1 won't boot with 4GB bigmem option
Date: Sun, 27 May 2001 22:25:15 +0100 (BST) [thread overview]
Message-ID: <E15482F-0002Mz-00@the-village.bc.nu> (raw)
In-Reply-To: <3B116BAC.F45612F3@chromium.com> from "Fabio Riccardi" at May 27, 2001 02:03:40 PM
> > mm: critical shortage of bounce buffers.
>
> Indeed this message has been pestering me in all the recent .4-acx kernels when
> the machine is under heavy FS pressure.
>
> In these kernels I observe a significative (5-10%) performance degradation as
> soon as the FS cache fills up all the available memory, at this moment "kswapd"
Its there to prove we had a problem
> 2.4.2-acx and early 2.4.3-acx kernles were much better in this respect and a lot
> more stable.
Hit any 2.4 kernel pre 2.4.5 vanilla [maybe fixed] and you will break bigmem
that way.
next prev parent reply other threads:[~2001-05-27 21:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-27 20:01 Ben Twijnstra
2001-05-27 21:03 ` Fabio Riccardi
2001-05-27 21:25 ` Alan Cox [this message]
2001-05-27 21:39 ` Fabio Riccardi
2001-05-27 21:21 ` Alan Cox
2001-05-28 7:34 ` Ben Twijnstra
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