WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] windows domU disk performance graph comparing hvm vs st

On Tue, Feb 23, 2010 at 09:44:24AM -0500, Konrad Rzeszutek Wilk wrote:
> > > > That is strange because in that configuration I get a far better
> > > > disk bandwidth with stubdoms compared to qemu running in dom0.
> > > >
> > > 
> > > What type of test are you doing?
> > > 
> > 
> > these are the results I got a while ago running a simple "dd if=/dev/zero
> > of=file" for 10 seconds:
> 
> Keep in mind that iometer (both the Windows a Linux version) by default
> do random seak of 50% reads and 50% writes. They do have some set of
> templates - "web server", "file server", "database server" that change
> the read/write ratio, size of blocks, and the queue length.(fyi, you can
> use fio to set the same values, if you can't get dynamo to compile on
> your Linux box).
> 

Does iometer run correctly on Linux nowadays? I remember it having problems
with more than 1 outstanding IO..

-- Pasi


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>