Mailing List Archive: Linux: Kernel

[PATCH v7 00/10] KVM: MMU: fast page fault

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xiaoguangrong at linux

Jun 20, 2012, 12:56 AM

Post #1 of 3 (77 views)
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[PATCH v7 00/10] KVM: MMU: fast page fault

Changlog:
- always atomicly update the spte if it can be updated out of mmu-lock
- rename spte_can_be_writable() to spte_is_locklessly_modifiable()
- cleanup and comment spte_write_protect()

Performance result:
(The benchmark can be found at: http://www.spinics.net/lists/kvm/msg73011.html)

before after
Run 10 times, Avg time: 538233957 ns. 249809853 ns. +53.6%

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mtosatti at redhat

Jul 3, 2012, 8:11 AM

Post #2 of 3 (70 views)
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Re: [PATCH v7 00/10] KVM: MMU: fast page fault [In reply to]

On Wed, Jun 20, 2012 at 03:56:29PM +0800, Xiao Guangrong wrote:
> Changlog:
> - always atomicly update the spte if it can be updated out of mmu-lock
> - rename spte_can_be_writable() to spte_is_locklessly_modifiable()
> - cleanup and comment spte_write_protect()
>
> Performance result:
> (The benchmark can be found at: http://www.spinics.net/lists/kvm/msg73011.html)
>
> before after
> Run 10 times, Avg time: 538233957 ns. 249809853 ns. +53.6%

Looks fine to me.

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avi at redhat

Jul 11, 2012, 6:51 AM

Post #3 of 3 (54 views)
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Re: [PATCH v7 00/10] KVM: MMU: fast page fault [In reply to]

On 06/20/2012 10:56 AM, Xiao Guangrong wrote:
> Changlog:
> - always atomicly update the spte if it can be updated out of mmu-lock
> - rename spte_can_be_writable() to spte_is_locklessly_modifiable()
> - cleanup and comment spte_write_protect()
>
> Performance result:
> (The benchmark can be found at: http://www.spinics.net/lists/kvm/msg73011.html)
>
> before after
> Run 10 times, Avg time: 538233957 ns. 249809853 ns. +53.6%
>

Thanks, all applied. Thanks for your patience while we reviewed all the
iterations of this patchset.

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error compiling committee.c: too many arguments to function

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