Re: [Xen-devel] [PATCH 0/2] gnttab: Improve scaleability

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 02/12/14 10:06, Christoph Egger wrote:
> This patch series changes the grant table locking to
> a more fain grained locking protocol. The result is
> a performance boost measured with blkfront/blkback.
> Document the locking protocol.
>
> [PATCH 1/2] gnttab: Introduce rwlock to protect updates to grant
> [PATCH 2/2] gnttab: refactor locking for scalability

XenServer has been using the original version of this patch (forward
ported a little), and it makes significant improvements to our scalability.

I highly recommend this for inclusion, although for 4.6 at this point.

~Andrew


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