[Xen-ia64-devel] Patches to enable huge page support for VT-i in Xen

["Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>]

Hi all,
        Attached patches intend to enable huge page support for VTi
domain according to discussion before. We can get 2-3% KB performance
gain when allocating >16M contiguous memory chunk for VTi, and haven't
collect other benckmark data so far.
As I know, Oracle database server will use 256M huge page to map its
data region, if assign 256M contiguous memory chunk to guest and support
huge page in xen, TLB misses would be reduced sharply. So we believe
more performance gain should be seen to the applications that use huge
page.
Any comments are appreciated! :)
Note: These patches are based on #Cset 12523 and not for check-in, just
for comments. 
Thanks & Best Regards
-Xiantao

OTC,Intel Corporation

Attachment: huge_page.tar
Description: huge_page.tar

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