K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-08-25T05:50:19.368557Z
K 7
svn:log
V 510
hyperv/storvsc: Increase queue depth and rework channel selection.

- Increasing queue depth gives ~100% performance improvement for
  randwrite fio test in Azure.
- New channel selection, which takes LUN id and the current cpuid
  into consideration, gives additional ~20% performance improvement
  for ranwrite fio test in Azure.

Submitted by:   Hongzhang Jiang <honzhan microsoft com>
Modified by:    sephe
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7622

END