tree 8e49302c146eacdd1cfbe78a6bd3aad2b81c3050
parent f75edf2dc828802d358393be80a6c89e919f8273
author Vivek Goyal <vgoyal@redhat.com> 1259863194 -0500
committer Jens Axboe <jens.axboe@oracle.com> 1259864933 +0100

blkio: Determine async workload length based on total number of queues

o Async queues are not per group. Instead these are system wide and maintained
  in root group. Hence their workload slice length should be calculated
  based on total number of queues in the system and not just queues in the
  root group.

o As root group's default weight is 1000, make sure to charge async queue
  more in terms of vtime so that it does not get more time on disk because
  root group has higher weight.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>