xen

[max bianco]

On Jan 18, 2008 8:16 AM, John Summerfield <debian at herakles.homelinux.org>
wrote:

> John Thompson wrote:
> > On 2008-01-18, John Summerfield <debian at herakles.homelinux.org> wrote:
> >
> >> I like to run xen-capable CPUs and this adds to the problems. First,
> >> with xen:
> >> I like to use a framebuffer console. It's a while since I tried on the
> >> Dell so we'll ignore that for the moment.
> >
> > Out of curiousity, what is the advantage of the xen kernel? I notice it
> > was installed when I installed FC8, and it seems to run fine, but why
> > exactly would I want to use it?
> >
>
> xen is a tool that enables one to run several virtual computers on one
> real computer. For example, I can boot the Xenified kernel for F8 and
> the run Windows on that (with newer CPUs).
>
> The grub configuration specifies Xen as the kernel, then has two modules
> directives:
> title Scientific Linux SL (2.6.18-8.1.15.el5xen)
>         root (hd0,0)
>         kernel /xen.gz-2.6.18-8.1.15.el5
>         module /vmlinuz-2.6.18-8.1.15.el5xen ro
> root=/dev/VolGroup00/LogVol00
>         module /initrd-2.6.18-8.1.15.el5xen.img
>         savedefault
>
> I've used my 64-bit F8 system to run a couple of 32-bit Debian systems
> for special purposes, and tried some things with Windows.
>
>
I have not used VMWare so I cannot comment on its  performance. I did a
quick google search on VMWare  vs. Xen  and got a few hits  but most look
like opinion pieces.  I am just starting to use virtualization with Fedora
and i installed the Xen kernel and wasn't to impressed with the performance
of the virtual machine(winXP). At this point I am not sure why it was so
sluggish. It could have been something I did or didn't do. I know there is a
mailing list for fedora virtualization stuff (that's not the official name)
but I haven't found the time to play with it much so please add a grain of
salt to my pronouncements. In the coming weeks i will be getting into it
alot more and will have more info. If we can keep the thread alive then I
will report back here. What has your experience with VMWare been?

-Max
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