Re: [Vserver] disk scheduling ?

From: Nicolas Cadou <ncadou_at_cobi.net>
Date: Tue 05 Jun 2007 - 18:37:37 BST
Message-Id: <200706051337.41567.ncadou@cobi.net>

Le Tuesday 5 June 2007 06:52, Tony Lewis a écrit :
> Nicolas Cadou wrote:
> > Le Sunday 3 June 2007 02:15, Tony Lewis a écrit :
> >> My context is this: one vserver runs a popular web site, and on another
> >> one, occasionally I shift multi-gig files around, with cp. When I'm
> >> doing that, the website vserver grinds to a halt - well, responds to
> >> requests quite slowly anyway.
> >
> > Instead of cp I use rsync --bwlimit=7000, which throttles I/O to a bit
> > less than 7MB/s. Works for local disk-to-disk copying, and works quite
> > well.
>
> There's always a workaround, but that's the same as renice'ing processes
> on one vserver to be cognisant of the needs of another vserver. It's
> what the CPU limiting handles, so vservers can be more autonomous.

I never came to try it, but this might help:

http://linux-vserver.org/Frequently_Asked_Questions#Disk_I.2FO_limiting.3F_Is_that_possible.3F

-- 
Nicolas Cadou
Cobi Informatique Inc

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Received on Tue Jun 5 19:21:10 2007
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