Messages in this thread | | | Date | Sun, 7 Sep 2008 20:55:36 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH] VM: Implements the swap-out page-clustering technique |
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On Sun, 07 Sep 2008 18:28:30 -0600 Zan Lynx <zlynx@acm.org> wrote: > Rik van Riel wrote: > [cut] > > On the other hand, you do want to avoid evicting data > > that the process is still using, just because you are > > swapping out a not recently referenced page on a > > nearby virtual address. > > How about writing the nearby pages to swap anyway and mark the still > in-use pages as SwapCache.
That is what will happen pretty much automatically.
Another thing the swap out page clustering code could do is move pages that were recently referenced back to the active list, so the VM will not have to scan those pages again.
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