[Xen-users] Re: XEN and Windows Guests in critical environment(hospital)

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Ligesh wrote:
> On Sat, Jun 23, 2007 at 10:44:15PM +0100, Nico Kadel-Garcia wrote:
>   
> > Ligesh wrote:
> >
> >     
> > > For the app vendor, it is irrelevant if you are running it inside xen or 
> > > on baremetal. Even for windows it doesn't matter, so for something that 
> > > sits so high up in the application chain, why would you want to 
> > > complicate and confuse the easily confused people by bringing in 
> > > information about a software about which they probably haven't heard about
> > >  
> > >       
> > Nonesense. I've *been* the vendor, and it makes a big difference what 
> > kernel you're using. Lying to them just confuses the issues, and I've 
> > run into *that*, too.
> >     
>  We are talking about application written in dotnet. That's pretty much 3 
> layers above the kernel. I had very clearly stated that if you are running 
> kernel level apps, then it is better you stick with real hardware, or even if 
> you are migrating, you get the proper experts to do it.
>   
Fair enough. but you'd be *amazed* at some of the fun and games that 
user-level applications do that are seriously affected by kernel 
subtleties. Proxy cache performance, for instance, is massively affected 
by subtleties of the "select" function.
>  We are talking about pure user-level applications, like the one in the 
> Original Post--a dotnet medical app --which would mostly be dealing with 
> accounting and database. So obviously, it has nothing to do with Xen or the 
> hardware. If you are running apps that has device drivers, then the situation 
> is completely different, but that's obvious.
>   
OK, be clear about that then. I still think it's a bad idea to hide your 
full configuration from your vendor. The conflicts can really surprise 
you at odd moments, and I've seen them happen.
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users