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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-10-16 23:25:49 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:45 -0700
commit145ca25eb2fbd20d4faf1bad4628c7650332058f (patch)
treeee5bebd5b7b1f0ced5e30c8f29f1ff5301aa9d0a /mm/page-writeback.c
parent69cb51d18c1ed593009d9a620cac49d0dcf15dc8 (diff)
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lib: floating proportions
Given a set of objects, floating proportions aims to efficiently give the proportional 'activity' of a single item as compared to the whole set. Where 'activity' is a measure of a temporal property of the items. It is efficient in that it need not inspect any other items of the set in order to provide the answer. It is not even needed to know how many other items there are. It has one parameter, and that is the period of 'time' over which the 'activity' is measured. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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