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| author | Jens Axboe <axboe@suse.de> | 2006-03-28 01:59:01 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-03-28 01:59:01 -0500 |
| commit | e2d74ac0664c89757bde8fb18c98cd7bf53da61c (patch) | |
| tree | 1e858044a9180766eae4ec694d4200c4ae850406 /lib | |
| parent | 329b10bb0feacb7fb9a41389313ff0a51ae56f2a (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 <axboe@suse.de>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions