Re: Paravirt KVM capabilities

Ingo Molnar
2007-01-11T09:38:13Z

* Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org> wrote:

> > so how can both "Xen and lhype get native syscall speeds (within
> > measurement error)", if it cannot use SYSENTER (it has to use int
> > $0x80), while a HVM kernel can?
>
> Sorry, my mistake. I was measuring with a statically linked binary,
> which didn't use SYSENTER even when available 8(
>
> I've fixed virtbench now, and reflects this correctly.
>
> "syscalls almost as fast as poorly-implemented native syscalls"?

hehe :-)

Ingo