Re: [Vserver] disk scheduling ?
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. Tony ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] disk scheduling ?
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 pgpeTXjk6sTYF.pgp Description: PGP signature ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] disk scheduling ?
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. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
