From owner-freebsd-fs@freebsd.org  Thu Jan 12 02:09:00 2017
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Subject: Re: Sluggish performance on head r311648
To: Ultima <ultima1252@gmail.com>, freebsd-current@freebsd.org,
 freebsd-fs@freebsd.org
References: <CANJ8om597G8-pi_gbq-niSa4iA5-XuZB1qnWjO8pC9_Jw3j22Q@mail.gmail.com>
From: Shane Ambler <FreeBSD@ShaneWare.Biz>
Message-ID: <a7d7d268-44f0-200d-0dd7-d6e164d369f8@ShaneWare.Biz>
Date: Thu, 12 Jan 2017 12:33:08 +1030
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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.



-- 
FreeBSD - the place to B...Storing Data

Shane Ambler