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xen-ia64-devel
Re: [Xen-ia64-devel] [PATCH] make MMU setting of domVTi configurable
Hi Alex,
Yep, I already have a patch for per domain.
I'll post it after merging to upstream.
We have an interesting result.
We tried some transaction benchmark,
for VHPT size in 512K, 2M, 4M, 8M:
- Linux is getting a better score (totally 20% up)
- Windows is getting a worse score (totally 10% down)
Emulating ptc_e is the villain of the piece for Windows.
We'll continue to tune up.
Thanks,
Kouya
Alex Williamson writes:
> On Fri, 2007-08-10 at 18:23 +0900, Kouya Shimura wrote:
> > Hi,
> >
> > This patch makes MMU setting of domVTi configurable.
> > The size of VTLB and VHPT can be set by boot option.
> > (e.g. "vti_vtlb_size=256k vti_vhpt_size=1m")
>
> Applied. It might be interesting if this could be specified per
> domain. Please let us know if you characterize better default settings
> for various guests. Thanks,
>
> Alex
>
> --
> Alex Williamson HP Open Source & Linux Org.
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