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| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-16 23:25:50 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:45 -0700 |
| commit | 3e26c149c358529b1605f8959341d34bc4b880a3 (patch) | |
| tree | 9d173b1753b86bcf03a8591e2509e3162234447c /lib/radix-tree.c | |
| parent | mm: per device dirty threshold (diff) | |
| download | linux-dev-3e26c149c358529b1605f8959341d34bc4b880a3.tar.xz linux-dev-3e26c149c358529b1605f8959341d34bc4b880a3.zip | |
mm: dirty balancing for tasks
Based on ideas of Andrew:
http://marc.info/?l=linux-kernel&m=102912915020543&w=2
Scale the bdi dirty limit inversly with the tasks dirty rate.
This makes heavy writers have a lower dirty limit than the occasional writer.
Andrea proposed something similar:
http://lwn.net/Articles/152277/
The main disadvantage to his patch is that he uses an unrelated quantity to
measure time, which leaves him with a workload dependant tunable. Other than
that the two approaches appear quite similar.
[akpm@linux-foundation.org: fix warning]
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>
Diffstat (limited to 'lib/radix-tree.c')
0 files changed, 0 insertions, 0 deletions