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Date: Sun, 20 Nov 2011 14:12:59 +0200 From: Avi Kivity <avi@...hat.com> To: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com> CC: Marcelo Tosatti <mtosatti@...hat.com>, LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org> Subject: Re: [PATCH v2 0/6] KVM: optimize memslots searching On 11/20/2011 01:29 PM, Avi Kivity wrote: > On 11/18/2011 11:16 AM, Xiao Guangrong wrote: > > This is the more work base on my v1 patchset which is posted some months ago, > > it can be found at: > > https://lkml.org/lkml/2011/2/22/68 > > > > Change log: > > - sort memslots base on its size and do the line search instead of binary > > search base on gfn, it is from Avi's idea. > > - in order to reduce cache footprint, memslots are sorted in the array of > > kvm->memslots->memslots[] and introduce a table to map slot id to index in > > the array > > > > There is the performance result: > > > > autotest for RHEL.6.1 setup/boot/reboot/shutdown(average): > > ept=1: before: 449.5 after: 447.8 > > ept=0: before: 532.7 after: 529.8 > > > > kernbench(average): > > ept=1: before: 127.94 after: 126.98 > > ept=0: before: 196.85 after: 189.66 > > Looks good, had a couple of comments but they're really minor. > btw, this patchset touches a lot of common code. Did you crossbuild for other kvm archs? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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