Date: Wed, 5 Sep 2018 10:50:45 -0400 From: Mark Johnston <markj@freebsd.org> To: Subbsd <subbsd@gmail.com> Cc: freebsd-current Current <freebsd-current@freebsd.org>, freebsd-fs@freebsd.org Subject: Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4 Message-ID: <20180905145045.GA37268@raichu> In-Reply-To: <CAFt_eMrhFiV0OJQ2w05-pFj4EkYr9dbYf4APLuJdBykwkOjRsQ@mail.gmail.com> References: <CAFt_eMrhFiV0OJQ2w05-pFj4EkYr9dbYf4APLuJdBykwkOjRsQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Sep 05, 2018 at 05:04:56PM +0300, Subbsd wrote: > Hi, > > I'm seeing a huge loss in performance ZFS after upgrading FreeBSD 12 > to latest revision (r338466 the moment) and related to ARC. > > I can not say which revision was before except that the newver.sh > pointed to ALPHA3. Could you please try reverting r338416 to see if that fixes the problem? > Problems are observed if you try to limit ARC. In my case: > > vfs.zfs.arc_max="128M" > > I know that this is very small. However, for two years with this there > were no problems. Two years on -CURRENT? How often did you update?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20180905145045.GA37268>