Messages in this thread | | | From | Kyle Moffett <> | Subject | Re: [00/41] Large Blocksize Support V7 (adds memmap support) | Date | Mon, 24 Sep 2007 08:32:30 -0400 |
| |
On Sep 23, 2007, at 02:22:12, Goswin von Brederlow wrote: > mel@skynet.ie (Mel Gorman) writes: >> On (16/09/07 23:58), Goswin von Brederlow didst pronounce: >>> But when you already have say 10% of the ram in mixed groups then >>> it is a sign the external fragmentation happens and some time >>> should be spend on moving movable objects. >> >> I'll play around with it on the side and see what sort of results >> I get. I won't be pushing anything any time soon in relation to >> this though. For now, I don't intend to fiddle more with grouping >> pages by mobility for something that may or may not be of benefit >> to a feature that hasn't been widely tested with what exists today. > > I watched the videos you posted. A nice and quite clear improvement > with and without your logic. Cudos. > > When you play around with it may I suggest a change to the display > of the memory information. I think it would be valuable to use a > Hilbert Curve to arange the pages into pixels. Like this: > > # # 0 3 > # # > ### 1 2 > > ### ### 0 1 E F > # # > ### ### 3 2 D C > # # > # ### # 4 7 8 B > # # # # > ### ### 5 6 9 A
Here's an excellent example of an 0-255 numbered hilbert curve used to enumerate the various top-level allocations of IPv4 space: http://xkcd.com/195/
Cheers, Kyle Moffett
- 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/
| |