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xen-users
Re: [Xen-users] HVM Disk performance
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Henning Sprang wrote:
> On 1/23/07, Karl Stevens <karl@xxxxxxxxxxxxx> wrote:
>> [...]
>> We're trying to install a legacy system (RH7.2) into a VM, but have run
>> into a performance issue with disk access. I understand from the post
>> here: http://marc.theaimsgroup.com/?l=xen-users&m=115745154318263&w=2
>> that disk access under HVM is quite slow due to the QEmu hardware
>> emulation.
>>
>> I've read paravirt drivers, and other work being done to improve
>> performance in this area, but haven't been able to track down any usable
>> code (Rusty Russel has some patches at
>> http://ozlabs.org/~rusty/paravirt/ , but it isn't immediately clear what
>> it should be applied against.)
>
> AFAIK this is about integrating paravirtualization into the mainstream
> kernel.
Thanks for clearing that up.. looks like I was barking up the wrong tree.
> I'd be happy to hear where any docs can be found about this, as well
> for linux as for windows (where the paravirt drivers might be only
> available for xenEnterprise users?!).
Just found this link, which may help us both. :)
http://lists.xensource.com/archives/html/xen-users/2006-09/msg00579.html
Thanks again,
Karl
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