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From: Steve Dainard <sdainard@spd1.com>
To: linux-nfs@vger.kernel.org
Subject: el7 /proc/fs/nfsd/pool_stats sockets-enqueued = packets-arrived
Date: Wed, 6 Nov 2019 11:26:29 -0800
Message-ID: <CAEMJtDsCm8rcjaL60_Ak4AbuhvzL=AXsnWC4mPNi2OH_cVMEFg@mail.gmail.com> (raw)

Hello,

We monitor sockets-enqueued on our NFS el6 servers which gives us an
idea if our servers are being overloaded.

On el7 3.10.0-1062.4.1.el7.x86_64 sockets-enqueued is always =
packets-arrived making it appear that nfs threads are never
immediately available to service requests.

Example output EL7:
/proc/fs/nfsd/pool_stats:
# pool packets-arrived sockets-enqueued threads-woken threads-timedout
0 9919427 9919427 9867288 40774

Thread usage does not move while sockets-enqueued are incrementing:
/proc/net/rpc/nfsd:
...
th 32 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
...

Is this a bug?

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