Sluggish performance on head r311648

[Shane Ambler]

On 11/01/2017 15:32, Ultima wrote:
> I'v been noticing lately sluggish performance, maybe zfs? First noticed
> this a few days ago right after upgrading on Jan 7th to r311648 and the
> last upgrade before that was around dec 30-jan 1 (not sure of rev). Decided
> to upgrade again today. I usually build and install head every week or two,
> but I have been extremely busy the past couple months.
>
> FreeBSD U1 12.0-CURRENT FreeBSD 12.0-CURRENT #16 r311903: Tue Jan 10
> 17:20:11 EST 2017 amd64
>
> Normally when one of my services scans a few directories it takes about 15
> seconds tops, it has been taking several minutes. I want to note that this

Just to eliminate the simple - is the zpool capacity high? When a pool
gets into the 80-90% capacity, performance drops.



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Shane Ambler