On Sep 23, 2007, at 02:22:12, Goswin von Brederlow wrote:
mel@xxxxxxxxx (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
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