Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-08 Thread Matthew Macy
sruptive path is to disable the new behavior. Post branch we can restore it as a default, possibly contingent on the amount of memory in the system. There is precedent for this with prefetch. -M > > -- > Cheers, > Cy Schubert > FreeBSD UNIX: Web: http://www.FreeBSD.org > > The need of the many outweighs the greed of the few. > > > > > > >

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-08 Thread Cy Schubert
In message , Matthew Macy writes: > > On Sat, Sep 8, 2018 at 11:03 Cy Schubert wrote: > > > In message , Jakob > > Alvermar > > k writes: > > > > > > I will test the patch below and report back. > > > > Agreed, though IMO your workload and your environment need to be > > understood first. What c

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-08 Thread Cy Schubert
---------------------------- > > From: Mark Johnston > > Sent: 07/09/2018 09:09 > > To: Jakob Alvermark > > Cc: Subbsd; allanj...@freebsd.org; freebsd-current Current > > Subject: Re: ZFS perfomance regression in FreeBSD 12 APLHA3->A

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-08 Thread Jakob Alvermark
On 9/7/18 6:06 PM, Mark Johnston wrote: On Fri, Sep 07, 2018 at 03:40:52PM +0200, Jakob Alvermark wrote: On 9/6/18 2:28 AM, Mark Johnston wrote: On Wed, Sep 05, 2018 at 11:15:03PM +0300, Subbsd wrote: On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: On 2018-09-05 10:04, Subbsd wrote: Hi, I

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-08 Thread Jakob Alvermark
the greed of the few. --- From: Mark Johnston Sent: 07/09/2018 09:09 To: Jakob Alvermark Cc: Subbsd; allanj...@freebsd.org; freebsd-current Current Subject: Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4 On Fri, Sep 07, 2018 at 03:40:52PM +0200, Jakob Alvermark wrote: &g

RE: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-07 Thread Cy Schubert
Mark Johnston Sent: 07/09/2018 09:09 To: Jakob Alvermark Cc: Subbsd; allanj...@freebsd.org; freebsd-current Current Subject: Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4 On Fri, Sep 07, 2018 at 03:40:52PM +0200, Jakob Alvermark wrote: > On 9/6/18 2:28 AM, Mark Johnston wrote: >

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-07 Thread Mark Johnston
On Fri, Sep 07, 2018 at 03:40:52PM +0200, Jakob Alvermark wrote: > On 9/6/18 2:28 AM, Mark Johnston wrote: > > On Wed, Sep 05, 2018 at 11:15:03PM +0300, Subbsd wrote: > >> On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: > >>> On 2018-09-05 10:04, Subbsd wrote: > Hi, > > I'm seeing

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-07 Thread Mark Johnston
On Fri, Sep 07, 2018 at 04:34:23PM +0300, Subbsd wrote: > > > > On 2018-09-05 10:04, 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. > > > > > > Unfortunately,

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-07 Thread Jakob Alvermark
On 9/6/18 2:28 AM, Mark Johnston wrote: On Wed, Sep 05, 2018 at 11:15:03PM +0300, Subbsd wrote: On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: On 2018-09-05 10:04, Subbsd wrote: Hi, I'm seeing a huge loss in performance ZFS after upgrading FreeBSD 12 to latest revision (r338466 the moment)

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-07 Thread Subbsd
On Thu, Sep 6, 2018 at 3:28 AM Mark Johnston wrote: > > On Wed, Sep 05, 2018 at 11:15:03PM +0300, Subbsd wrote: > > On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: > > > > > > On 2018-09-05 10:04, Subbsd wrote: > > > > Hi, > > > > > > > > I'm seeing a huge loss in performance ZFS after upgrading

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-05 Thread Mark Johnston
On Wed, Sep 05, 2018 at 11:15:03PM +0300, Subbsd wrote: > On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: > > > > On 2018-09-05 10:04, Subbsd wrote: > > > Hi, > > > > > > I'm seeing a huge loss in performance ZFS after upgrading FreeBSD 12 > > > to latest revision (r338466 the moment) and related

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-05 Thread Subbsd
On Wed, Sep 5, 2018 at 5:58 PM Allan Jude wrote: > > On 2018-09-05 10:04, 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 t

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-05 Thread Allan Jude
On 2018-09-05 10:04, 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. > > Problems are observed if

Re: ZFS perfomance regression in FreeBSD 12 APLHA3->ALPHA4

2018-09-05 Thread Mark Johnston
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 yo