[Wylug-discuss] Which process is accessing the hard drive?

[Roy Mac]

http://www.linuxjournal.com/article/7539
http://tuxmobil.org/Mobile-Guide/mobile-guide-p6a5s7-power-saving-techniques
.html
http://www.gentoo.org/doc/en/power-management-guide.xml


-----Original Message-----
From: wylug-discuss-bounces at wylug.org.uk
[mailto:wylug-discuss-bounces at wylug.org.uk] On Behalf Of Dave Whiteley
Sent: Wednesday, July 06, 2005 11:38 AM
To: wylug-discuss at wylug.org.uk
Subject: Re: [Wylug-discuss] Which process is accessing the hard drive?

On Wednesday 06 Jul 2005 11:03, Borph at gmx.de wrote:
> Am 06.07.2005, 10:42 Uhr, schrieb David Holden <dh at iucr.org>:
> >   lsof
>
> I think this is listing the open files, but you don't know wether 
> there is 'activity' or not.
> I found out myself that the kernel flush daemon writes the dirty cache 
> to disc every 5 seconds, sounds pretty much like this! Also: there is 
> a /proc/sys/vm/laptop_mode, but this doesn't seem to work on mine.
>
> I will mess around with the flush times. Apparently Linux doesn't seem 
> to be very suitably for laptops out of the box - it commits every 5 
> seconds, but it writes then only data which is dirty for more then 30 
> seconds, not all dirty data.
>
> Thanks so long anyway!
> Peter

I seem to remember an article in a fairly recent issue of the Linux Journal
that discussed ways of minimising hard disk activity to save batteries on
laptops.  

Dave

-- 

Dave Whiteley
d.l.whiteley at ee.leeds.ac.uk
Phone +44 (0)113 343 2059
School of Electronic and Electrical Engineering The University of Leeds.
Leeds, LS2 9JT,  UK

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