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authorJens Axboe <[email protected]>2006-03-28 08:59:01 +0200
committerJens Axboe <[email protected]>2006-03-28 08:59:01 +0200
commite2d74ac0664c89757bde8fb18c98cd7bf53da61c (patch)
tree1e858044a9180766eae4ec694d4200c4ae850406 /net/lapb/lapb_subr.c
parent329b10bb0feacb7fb9a41389313ff0a51ae56f2a (diff)
[PATCH] [BLOCK] cfq-iosched: change cfq io context linking from list to tree
On setups with many disks, we spend a considerable amount of time looking up the process-disk mapping on each queue of io. Testing with a NULL based block driver, this costs 40-50% reduction in throughput for 1000 disks. Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
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