Re: [Xen-users] dom0 freezes under high IO load - HP ML150 G2

["Nico Kadel-Garcia" <nkadel@xxxxxxxxx>]

Tim Post wrote:
> On Sat, 2007-03-03 at 05:57 -0300, Daniel Mealha Cabrita wrote:
> > Em SÃb 03 Mar 2007 04:58, Tim Post escreveu:
> > > On Fri, 2007-03-02 at 22:12 -0800, Tom Mornini wrote:
> > > > You don't believe that *testing* is a good thing?
> > > >
> > > > I'm pretty sure the Xen documentation points out that Dom0 is not
> > > > particularly special, except that it is privileged to manipulate
> > > > DomUs.
> > > >
> > > > I'd love to hear other's opinions on this topic. Should Dom0 be
> > > > entirely free of disk I/O?
> > > That's impossible.
> > I wouldn't say that.
> Does dom-0 not require a base install of Linux? Does it not use
> logrotate slocate brute force detection syslog sawing and other i/o
> consuming needed but wasteful junk that any other server would?
Welcome to LiveCD's. With a grotesque amount RAM, you could potentially do 
entirely RAM based operating system images.
> Just treat it like any other vital system that has very little ram.
> Vital systems having very little ram is not a familiar concept to many
> newcomers to Linux since the days of 386 (and gasp) 286 / 8088 / 80886
> users.
Yeah, I've noticed that. Unfortunately, a lot of management tools these days 
are also quite.... generous with their requirements for successful 
operation. The virt-manager is one of those. 

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