dev.ix.0.queueX.interrupt_rate

Gerrit Kühn gerrit.kuehn at aei.mpg.de
Tue Aug 25 14:04:57 UTC 2015


On Tue, 25 Aug 2015 07:55:49 -0400 (EDT) Rick Macklem
<rmacklem at uoguelph.ca> wrote about Re: dev.ix.0.queueX.interrupt_rate:


RM> If you have tso enabled, you could try this patch:
RM>   https://reviews.freebsd.org/D3477
RM> 
RM> If TSO is disabled, then we don't have an explanation for poor NFS
RM> performance yet. 

I tried both with or without TSO, and it does not appear to make any
difference for me. I get about 50MB/s net write speed and about 200MB/s
read. Even my 1GBE interface perform better in terms of writing.

RM> If you haven't seen it, you might want to keep an eye
RM> on this thread: http://docs.FreeBSD.org/cgi/mid.cgi?55DC1B5A.8010109

Yes, I am watching this. Thanks for the pointer.


cu
  Gerrit


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