| commit | 9a0e609e3fd8a95c96629b9fbde6b8c5b9a1456a | [log] [tgz] |
|---|---|---|
| author | Mike Snitzer <snitzer@redhat.com> | Tue Feb 24 11:03:22 2015 -0500 |
| committer | Mike Snitzer <snitzer@redhat.com> | Wed Apr 15 12:10:12 2015 -0400 |
| tree | f16b43f956f54b0a1c214a8bba840b85217ed963 | |
| parent | ff36ab34583ae23250a4bf39805d69771e7e0131 [diff] |
dm: only run the queue on completion if congested or no requests pending On really fast storage it can be beneficial to delay running the request_queue to allow the elevator more opportunity to merge requests. Otherwise, it has been observed that requests are being sent to q->request_fn much quicker than is ideal on IOPS-bound backends. Signed-off-by: Mike Snitzer <snitzer@redhat.com>