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

Artem Penner apenner.it at gmail.com
Thu Aug 24 18:20:42 UTC 2017

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    Hi, can you post output of
    https://github.com/d-helios/dtrace/blob/master/zfs/zfs_rwlatency.d
    And if you have separate log device output of
    https://github.com/d-helios/dtrace/blob/master/zfs/zil_latency.d
    ---
    What is your nfs-server settings? (sharectl get nfs)

    чт, 24 авг. 2017 г. в 19:35, Richard Elling <
    richard.elling at richardelling.com>:

    > 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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