Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] Use extents for recording what swap is allocated. | Date | Tue, 24 Oct 2006 23:58:58 +0200 |
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On Tuesday, 24 October 2006 23:34, Pavel Machek wrote: > Hi! > > > > Switch from bitmaps to using extents to record what swap is allocated; > > > they make more efficient use of memory, particularly where the allocated > > > storage is small and the swap space is large. > > > > As I said before, I like the overall idea, but I have a bunch of > > comments. > > Okay, if Rafael likes it... lets take a look. > > First... what is the _worst case_ overhead? AFAICT extents are very > good at the best case, but tend to suck for the worst case...?
I think we'll usually be close to the best case, as we tend to allocate large consecutive blocks of swap space. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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