Subject: Re: Interactive performance in -current
To: Chris Gilbert <chris@dokein.co.uk>
From: None <jmmv@menta.net>
List: tech-kern
Date: 10/25/2003 18:40:26
On Sat, Oct 25, 2003 at 05:26:46PM +0100, Chris Gilbert wrote:
> 
> I've noticed similair things myself.  Although I've not looked into it
> in depth, but certainly things don't feel as snappy when the system is
> really busy with the disks.
> 
> (I'd guess that pic0 pin 14 is the disk on your system)

pciide0: primary channel interrupting at irq 14

Attached to the primary channel are the following disks:

wd0 at atabus0 drive 0: <WDC WD800JB-00ETA0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 76319 MB, 155061 cyl, 16 head, 63 sec, 512 bytes/sect x 156301488 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd1 at atabus0 drive 1: <FUJITSU MPG3204AT E>
wd1: drive supports 16-sector PIO transfers, LBA addressing
wd1: 19546 MB, 39714 cyl, 16 head, 63 sec, 512 bytes/sect x 40031712 sectors
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)

FYI this is an Asus A7V8X-x motherboard.

> If you could also check if the disks are busy, there's a list on the
> bottom left of systat vm, or use systat iostat as well.

Will check, but afaict for now, the disk led gets "stalled" when the system
goes slow.

Cheers.

-- 
Julio M. Merino Vidal <jmmv@menta.net>
The NetBSD Project - http://www.NetBSD.org/