tree ee5bebd5b7b1f0ced5e30c8f29f1ff5301aa9d0a
parent 69cb51d18c1ed593009d9a620cac49d0dcf15dc8
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1192602349 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1192635765 -0700

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>