MFC r211931:
Update ZFS metaslab code from OpenSolaris.
This provides a noticeable write speedup, especially on pools with
less than 30% of free space.
Detailed information (OpenSolaris onnv changesets and Bug IDs):
11146:
7e58f40bcb1c
6826241 Sync write IOPS drops dramatically during TXG sync
6869229 zfs should switch to shiny new metaslabs more frequently
11728:
59fdb3b856f6
6918420 zdb -m has issues printing metaslab statistics
12047:
7c1fcc8419ca
6917066 zfs block picking can be improved
Approved by: delphij (mentor)
Obtained from: OpenSolaris (Bug ID
6826241,
6869229,
6918420,
6917066)
git-svn-id: svn://svn.freebsd.org/base/stable/8@212671
ccf9f872-aa2e-dd11-9fc8-
001c23d0bc1f
projects / FreeBSD / stable / 8.git / commit