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authorAndrew Morton <akpm@osdl.org>2006-01-18 17:42:26 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-18 19:20:17 -0800
commite236a166b2bc437769a9b8b5d19186a3761bde48 (patch)
tree326c45b5592650dc28f0ece22e8d9b5cd810a09d /mm/mempolicy.c
parentc2aeacd48ca2418fbac985a58d2200c263444d65 (diff)
[PATCH] mm: dirty_exceeded speedup
Ravikiran reports that this variable is bouncing all around nodes on NUMA machines, causing measurable performance problems. Fix that up by only writing to it when it actually changed. And put it in a new cacheline to prevent it sharing with other things (this happened). Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/mempolicy.c')
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