On Wed, Jun 06, 2007 at 10:36:25AM +0930, Admin wrote:
> On Wed, 6 Jun 2007 03:07:37 am Nicolas Cadou wrote:
> > 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
>
> A while back I made some patches for util-vserver and a vserver-patched kernel
> which implemented ionice support
>
> http://www.users.on.net/~anonc/.patches/vserver/
>
> the readme.txt file has details on requirements and usage
>
> it should be simple to adapt these to the latest releases.
maybe it would make sense to put guests (by default
or via option) into the idle class on a Linux-VServer
system/kernel?
best,
Herbert
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Received on Wed Jun 6 17:31:41 2007