svn commit: r309714 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
Andriy Gapon
avg at FreeBSD.org
Wed Dec 14 12:04:18 UTC 2016
On 08/12/2016 17:58, Alexander Motin wrote:
> This change switches zio_timestamp_compare() from comparing uninitialized
> io_offset to really populated io_bookmark values. I haven't decided yet
> what to do with timestampts, but on simple tests this change gives the
> same peformance results by just making code to work as declared.
I think that we should just enable precise timestamps.
I just can't see them noticeably hurting performance given the amount of
calculations, memory allocations, locking, etc, that ZFS already has.
And there are layers above and below ZFS too.
--
Andriy Gapon
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