From: Linus Torvalds <torvalds@transmeta.com>
To: Zlatko Calusic <zlatko.calusic@iskon.hr>
Cc: Marcelo Tosatti <marcelo@conectiva.com.br>,
linux-mm@kvack.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: xmm2 - monitor Linux MM active/inactive lists graphically
Date: Wed, 24 Oct 2001 21:19:55 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.33.0110242117150.9147-100000@penguin.transmeta.com> (raw)
In-Reply-To: <dnlmi0pnue.fsf@magla.zg.iskon.hr>
On 25 Oct 2001, Zlatko Calusic wrote:
>
> Sure. Output of 'vmstat 1' follows:
>
> 1 0 0 0 254552 5120 183476 0 0 12 24 178 438 2 37 60
> 0 1 0 0 137296 5232 297760 0 0 4 5284 195 440 3 43 54
> 1 0 0 0 126520 5244 308260 0 0 0 10588 215 230 0 3 96
> 0 2 0 0 117488 5252 317064 0 0 0 8796 176 139 1 3 96
> 0 2 0 0 107556 5264 326744 0 0 0 9704 174 78 0 3 97
This does not look like a VM issue at all - at this point you're already
getting only 10MB/s, yet the VM isn't even involved (there's definitely no
VM pressure here).
> Notice how there's planty of RAM. I'm writing sequentially to a file
> on the ext2 filesystem. The disk I'm writing on is a 7200rpm IDE,
> capable of ~ 22 MB/s and I'm still getting only ~ 9 MB/s. Weird!
Are you sure you haven't lost some DMA setting or something?
Linus
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next prev parent reply other threads:[~2001-10-25 4:19 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-24 10:42 Zlatko Calusic
2001-10-24 14:26 ` Marcelo Tosatti
2001-10-25 0:25 ` Zlatko Calusic
2001-10-25 4:19 ` Linus Torvalds [this message]
2001-10-25 4:57 ` Linus Torvalds
2001-10-25 12:48 ` Zlatko Calusic
2001-10-25 16:31 ` Linus Torvalds
2001-10-25 17:33 ` Jens Axboe
2001-10-26 9:45 ` Zlatko Calusic
2001-10-26 10:08 ` Zlatko Calusic
2001-10-26 14:39 ` Jens Axboe
2001-10-26 14:57 ` Zlatko Calusic
2001-10-26 15:01 ` Jens Axboe
2001-10-26 16:04 ` Linus Torvalds
2001-10-26 16:57 ` Linus Torvalds
2001-10-26 17:19 ` Linus Torvalds
2001-10-28 17:30 ` Zlatko Calusic
2001-10-28 17:34 ` Linus Torvalds
2001-10-28 17:48 ` Alan Cox
2001-10-28 17:59 ` Linus Torvalds
2001-10-28 18:22 ` Alan Cox
2001-10-28 18:46 ` Linus Torvalds
2001-10-28 19:29 ` Alan Cox
2001-10-28 18:56 ` Andrew Morton
2001-10-30 8:56 ` Jens Axboe
2001-10-30 9:26 ` Zlatko Calusic
2001-10-28 19:13 ` Barry K. Nathan
2001-10-28 21:42 ` Jonathan Morton
2001-11-02 5:52 ` Zlatko's I/O slowdown status Andrea Arcangeli
2001-11-02 20:14 ` Zlatko Calusic
2001-11-02 20:26 ` Rik van Riel
2001-11-02 21:22 ` Zlatko Calusic
2001-11-02 20:57 ` Andrea Arcangeli
2001-11-02 23:23 ` Simon Kirby
2001-10-27 13:14 ` xmm2 - monitor Linux MM active/inactive lists graphically Giuliano Pochini
2001-10-28 5:05 ` Mike Fedyk
2001-10-25 9:07 ` Zlatko Calusic
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