[OmniOS-discuss] Upgrade to 151022m from 014 - horrible NFS performance

[Schweiss, Chip]

I switched back to 014 for now, it was too bad to inflict on my users.

I have some new systems coming in soon that I'll test on r151022 before
making them live.   I will start with the NFS defaults.

-Chip

On Thu, Aug 24, 2017 at 8:35 AM, Dan McDonald <danmcd at kebe.com> wrote:

>
> > On Aug 24, 2017, at 8:41 AM, Schweiss, Chip <chip at innovates.com> wrote:
> >
> > I just move one of my production systems to OmniOS CE 151022m from
> 151014 and my NFS performance has tanked.
> >
> > Here's a snapshot of nfssvrtop:
> >
> > 2017 Aug 24 07:34:39, load: 1.54, read: 5427     KB, swrite: 104
> KB, awrite: 9634     KB
> > Ver     Client           NFSOPS   Reads SWrites AWrites Commits   Rd_bw
> SWr_bw  AWr_bw    Rd_t   SWr_t   AWr_t   Com_t  Align%
> > 3       10.28.17.1            0       0       0       0       0       0
>      0       0       0       0       0       0       0
> > 3       all                   0       0       0       0       0       0
>      0       0       0       0       0       0       0
> > 4       10.28.17.1            9       0       0       0       0       0
>      0       0       0       0       0       0       0
> > 4       10.28.16.160         17       0       0       0       0       0
>      0       0       0       0       0       0       0
> > 4       10.28.16.127         20       0       0       0       0       0
>      0       0       0       0       0       0       0
> > 4       10.28.16.113         74       6       6       0       0      48
>     56       0    1366   20824       0       0     100
> > 4       10.28.16.64         338      16       0      36       3     476
>      0    1065     120       0     130  117390     100
> > 4       10.28.16.54         696      68       0      91       5    2173
>      0    2916      52       0      93  142083     100
> > 4       all                1185      90       6     127       8    2697
>     56    3996     151   20824     104  133979     100
> >
> > The pool is not doing anything but serving NFS.   Before the upgrade,
> the pool would sustain 20k NFS ops.
> >
> > Is there some significant change in NFS that I need to adjust its tuning?
>
> Oh my.
>
> I'd start pinging the illumos list on this.  Also, are there any special
> tweaks you made in the 014 configuration?  IF you did, I'd start back
> removing them and seeing what a default system does, just in case.
>
> I know Delphix and Nexenta still care about NFS quite a bit, so I can't
> believe something would be that bad.
>
> Maintainers:  Check for NFS changes RIGHT AFTER 022 closed for blanket
> upstream pull-ins.  Maybe it closed during a poor-performance window?
>
> Dan
>
>
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