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check_fast
2012 Jun 27
0
Re: [PATCH 2 of 4] xen, pod: Zero-check recently populated pages (checklast)
> # HG changeset patch
> # User George Dunlap <george.dunlap@eu.citrix.com>
> # Date 1340815812 -3600
> # Node ID ea827c449088a1017b6e5a9564eb33df70f8a9c6
> # Parent b4e1fec1c98f6cbad666a972f473854518c25500
> xen,pod: Zero-check recently populated pages (checklast)
>
> When demand-populating pages due to guest accesses, check recently
> populated
> pages to see if we can reclaim them for the cache. This should keep the
> PoD
> cache filled when the start-of-day scrubber is going through.
>
> The number 128 was chosen by experiment....