Re: Degraded performance with Windows 2008 R2 with applications

2011-03-07 Thread Mathias Klette
On 07/03/11 10:41, Stefan Hajnoczi wrote: On Sun, Mar 6, 2011 at 10:25 PM, Mathias Klette wrote: I've tested with iozone to compare IO with a linux guest and also to verify changes made to improve situation - but nothing really helped. TESTS with "iozone -s 4G -r 256k -c -e": Please use the

Re: Degraded performance with Windows 2008 R2 with applications

2011-03-07 Thread Avi Kivity
On 03/07/2011 12:25 AM, Mathias Klette wrote: Hi list, I'm not sure if this is the right list, but I have to ask for help on some performance issues with KVM and Windows 2008 R2. Windows guest is working properly on a clean install. But once some applications get installed - especially MSSQL, b

Re: Degraded performance with Windows 2008 R2 with applications

2011-03-07 Thread Stefan Hajnoczi
On Sun, Mar 6, 2011 at 10:25 PM, Mathias Klette wrote: > I've tested with iozone to compare IO with a linux guest and also to > verify changes made to improve situation - but nothing really helped. > > TESTS with "iozone -s 4G -r 256k -c -e": Please use the -I option to bypass the page cache, oth

Degraded performance with Windows 2008 R2 with applications

2011-03-06 Thread Mathias Klette
Hi list, I'm not sure if this is the right list, but I have to ask for help on some performance issues with KVM and Windows 2008 R2. Windows guest is working properly on a clean install. But once some applications get installed - especially MSSQL, but others as well - system becomes pretty unres