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

Richard Elling richard.elling at richardelling.com
Thu Aug 24 16:33:47 UTC 2017

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    > On Aug 24, 2017, at 5:41 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.

    The commit time is in microseconds, and it does look high. Is there a slog?
     — richard

    >
    > Is there some significant change in NFS that I need to adjust its tuning?
    >
    > -Chip
    >
    >
    >
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