Re: HVM Performance and PV drivers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thursday 08 February 2007 10:08am, Jim Klein wrote:
> Anyone been able to get the PV drivers from Xensource to work on an
> FC6 created HVM. Performance is rather sluggish, even on 64bit,
> without these, yet they don't seem to want to work here. Or,
> alternatively, is Red Hat working on their own? The HVM IO is really
> a bit too slow for most production use without them.

I don't believe that you can do this.

But, I'm wondering what OS you're trying to run on the HVM DomU.  If it's 
Linux, use a paravirtualized DomU.  You'll get much better performance 
(especially on things like I/O).

HVM adds some emulation overhead and, thus, is slower than PV.  HVM is only 
necessary to run an OS for which no paravirtualized kernel is available.
-- 
Lamont Peterson <lamont@xxxxxxxxxxxx>
Senior Instructor
Guru Labs, L.C. [ http://www.GuruLabs.com/ ]

NOTE:  All messages from this email address should be digitally signed with my
       0xDC0DD409 GPG key. It is available on the pgp.mit.edu keyserver as
       well as other keyservers that sync with MIT's.

Attachment: pgpKG1cpkF7VW.pgp
Description: PGP signature

--
Fedora-xen mailing list
Fedora-xen@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/fedora-xen

[Index of Archives]     [Fedora General]     [Fedora Music]     [Linux Kernel]     [Fedora Desktop]     [Fedora Directory]     [PAM]     [Big List of Linux Books]     [Gimp]     [Yosemite News]

  Powered by Linux