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Re: xmm2 - monitor Linux MM active/inactive lists graphically

To: Linus Torvalds <torvalds@transmeta.com>
Subject: Re: xmm2 - monitor Linux MM active/inactive lists graphically
From: Andrew Morton <akpm@zip.com.au>
Date: Sun, 28 Oct 2001 10:56:24 -0800
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>,Zlatko Calusic <zlatko.calusic@iskon.hr>,Jens Axboe <axboe@suse.de>,Marcelo Tosatti <marcelo@conectiva.com.br>, linux-mm@kvack.org,lkml <linux-kernel@vger.kernel.org>
Original-Recipient: rfc822;linux-mm-www-archive@humbolt.geo.uu.nl
References: <E15xu2b-0008QL-00@the-village.bc.nu> <Pine.LNX.4.33.0110280945150.7360-100000@penguin.transmeta.com>
Sender: owner-linux-mm@kvack.org

Linus Torvalds wrote:
> 
> And it may be that the hpt366 IDE driver has always had this braindamage,
> which the -ac code hides. Or something like this.
> 

My hpt366, running stock 2.4.14-pre3 performs OK.
	time ( dd if=/dev/zero of=foo bs=10240k count=100 ; sync )
takes 35 seconds (30 megs/sec).  The same on current -ac kernels.

Maybe Zlatko's drive stopped doing DMA?

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References:
- Re: xmm2 - monitor Linux MM active/inactive lists graphically
  - From: Alan Cox <alan@lxorguk.ukuu.org.uk>
- Re: xmm2 - monitor Linux MM active/inactive lists graphically
  - From: Linus Torvalds <torvalds@transmeta.com>

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