Re: [Xen-users] very slow disk access

[Randy Katz <rkatz@xxxxxxxxxxxxxxxxxxxxx>]

On 2/26/2011 6:40 PM, Brian Krusic wrote:
> On Feb 26, 2011, at 6:25 PM, Brian Krusic wrote:
>
> > On Feb 26, 2011, at 6:11 PM, Randy Katz wrote:
> >
> > > it seems I am using tap:aio on what appears to be quite slow:
> > >
> > > disk = [ "tap:aio:/disk0/server3.img,xvda,w" ]
> > >
> > > Is there a good way to convert from tap:aio to lvm?
> >
> > Hi Randy,
> >
> > I don't use LVM and my performance is fine.
> >
> > Have you looked into the domU itself troubleshooting as if it were a 
> > non virtual host?
> > Things like vmstat, top, tcpdump, dstat, etc... just to get a 
> > snapshot of what your system is doing.
>
> Apply the same approach to dom0 as well.
>
> I've used both fixed and non fixed disk images w/o issue.
>
> My env is Centos using the bundled version of Xen as well as Gitcos 
> latest 3.X versions.
Hi Brian my env is the same. How do I get into dom0 to look into it? xm 
console Domain-0
does not work for me. Thanks,

Randy

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