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Date:      Mon, 22 Sep 2014 01:19:26 +0300
From:      Vladislav Prodan <universite@ukr.net>
To:        Rumen Telbizov <telbizov@gmail.com>
Cc:        "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
Subject:   Re[2]: FreeBSD 10 network performance problems
Message-ID:  <1411337035.63493935.by6bew01@frv35.fwdcdn.com>
In-Reply-To: <CAENR%2B_UwjMGoOqKkhCeL4zmLnSgTiABoeR-7x71MBvOnCF8z%2BA@mail.gmail.com>
References:  <CAENR%2B_VDVvnY0zWKVXHOjz2vWw27s%2ByVrz9ZFokZ=p6P6oFNvw@mail.gmail.com> <1411259605.674669006.339g4pd4@frv35.fwdcdn.com> <CAENR%2B_UwjMGoOqKkhCeL4zmLnSgTiABoeR-7x71MBvOnCF8z%2BA@mail.gmail.com>

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 --- Original message ---
 From: "Rumen Telbizov" <telbizov@gmail.com>
 Date: 22 September 2014, 00:31:51
 


> Thank you for your answers Adrian and Vladislav.
> 
> Vladislav:

> Here are the details that you requested (freshly booted system):
> Once again, I am ready to provide additional metrics and run more tests
> upon request.
> 
> Thank you,
> Rumen Telbizov


1) Try to add to the config /boot/loader.conf :
net.isr.defaultqlimit=2048
net.isr.maxqlimit=40960

2) Try to add to the config /etc/sysctl.conf :
net.inet.tcp.recvbuf_inc=524288
net.inet.tcp.recvbuf_max=16777216

net.inet.tcp.sendbuf_inc=524288
net.inet.tcp.sendbuf_max=16777216
net.inet.tcp.sendspace=65536

3) On the network card turn off TSO, rxcsum and txcsum 
ifconfig ix0 -rxcsum -tso -txcsum lro


--
 Vladislav V. Prodan
 System & Network Administrator
 support.od.ua
 



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