dev.ix.0.queueX.interrupt_rate

[Rick Macklem]

Gerritt Kuhn wrote:
> On Mon, 24 Aug 2015 22:29:26 +0300 Slawa Olhovchenkov <slw at zxy.spb.ru>
> wrote about dev.ix.0.queueX.interrupt_rate:
> 
> SO> Last -stable, no tuning. Is this normal?
> 
> From 10.2-rel (and still having severe performance issues with NFS as
> reported before):
> 
> dev.ix.0.queue7.interrupt_rate: 31250
> dev.ix.0.queue6.interrupt_rate: 100000
> dev.ix.0.queue5.interrupt_rate: 83333
> dev.ix.0.queue4.interrupt_rate: 100000
> dev.ix.0.queue3.interrupt_rate: 500000
> dev.ix.0.queue2.interrupt_rate: 31250
> dev.ix.0.queue1.interrupt_rate: 31250
> dev.ix.0.queue0.interrupt_rate: 500000
> 
If you have tso enabled, you could try this patch:
  https://reviews.freebsd.org/D3477

If TSO is disabled, then we don't have an explanation for poor NFS performance
yet. If you haven't seen it, you might want to keep an eye on this thread:
  http://docs.FreeBSD.org/cgi/mid.cgi?55DC1B5A.8010109

rick

> 
> 
> cu
>   Gerrit
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