On Tue, Aug 25, 2015 at 04:04:41PM +0200, Gerrit K"uhn wrote: > On Tue, 25 Aug 2015 07:55:49 -0400 (EDT) Rick Macklem > <[email protected]> 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.
For discover poor network performance you need: 1. check cables 2. capture interface statisctics from all ports on paths on network switchs 3. capture NIC statisctics on hosts (netstat -nbeI) 4. ifconfig -a 5. netstat -rn 6. /var/log/dmesg.boot _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
