Review Request 103: 5176 lock contention on godfather zio

[Matthew Ahrens via illumos-zfs]

visit: https://reviews.csiden.org/r/103/
Review request for OpenZFS Developer Mailing List.
By Matthew Ahrens.
*Bugs: * 5176 <https://www.illumos.org/projects/illumos-gate//issues/5176>
*Repository: * illumos-gate
Description

5176 lock contention on godfather zio

Reviewed by: Alex Reece <***@delphix.com>

Reviewed by: George Wilson <***@delphix.com>

Reviewed by: Christopher Siden <***@delphix.com>

Reviewed by: Adam Leventhal <***@delphix.com>

Original author: Matthew Ahrens

Testing

ztest

zfs test suite

performance testing

Diffs

- usr/src/cmd/zdb/zdb.c (2def6241b7118dd84d7943721164f8f8b9dfe978)
- usr/src/uts/common/fs/zfs/spa.c
(72870b5898917eb4ff33bce2e988516e09d59486)
- usr/src/uts/common/fs/zfs/sys/spa_impl.h
(739b95988c251737976dadc8640959bd116ba606)
- usr/src/uts/common/fs/zfs/zio.c
(d8833f67079d2e22e341165c3534778c702aab7f)

View Diff <https://reviews.csiden.org/r/103/diff/>



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