Date: Fri, 5 Oct 2012 18:46:46 +0300 From: Nikolay Denev <ndenev@gmail.com> To: Gleb Smirnoff <glebius@FreeBSD.org> Cc: "svn-src-all@freebsd.org" <svn-src-all@FreeBSD.org> Subject: Re: svn commit: r240742 - head/sys/net Message-ID: <67EC4A5E-752C-4476-9C95-8BAA3A8F49BC@gmail.com> In-Reply-To: <20121005151139.GS34622@glebius.int.ru> References: <201209201005.q8KA5BqZ094414@svn.freebsd.org> <2966A49C-DE3F-4559-A799-D1E9C0A74A9C@gmail.com> <20121005070914.GI34622@glebius.int.ru> <F01FAEFE-8148-412D-9772-A48A1ADA64A7@gmail.com> <20121005080453.GL34622@glebius.int.ru> <2109548116005159772@unknownmsgid> <E932BC95-8286-495D-9709-3F74379CB90B@gmail.com> <20121005151139.GS34622@glebius.int.ru>
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On Oct 5, 2012, at 6:11 PM, Gleb Smirnoff <glebius@FreeBSD.org> wrote:
> Nikolay,
>=20
> On Fri, Oct 05, 2012 at 05:11:12PM +0300, Nikolay Denev wrote:
> N> With both modules I was able to saturate the four GigE interfaces, =
and got=20
> N> about ~3.72 Gbits/sec total according to iperf, systat -ifstat =
showed
> N> about 116MB/s per each interface.
> N>=20
> N> However I'm seeing slightly different CPU stat graphs [1], the =
difference is not big,
> N> but with the new if_lagg(4) driver, when the machine is acting as =
client I'm
> N> seeing slightly higher system CPU time, and about the same =
interrupt, while
> N> when acting as server both system and interrupt are slightly lower.
> N> But please note that these tests were not very scientifically =
correct.
> N> When the server is available again I might be able to perform =
several runs and
> N> do a proper comparison.
>=20
> Do I understand correct, that in the above testing "server" means =
transmitting
> traffic and "client" is receiving traffic?
>=20
> --=20
> Totus tuus, Glebius.
Actually with iperf the server is more like a sink, and the client sends =
data to the server.
Here's what's in the man page :
To perform an iperf test the user
must establish both a server (to discard traffic) and a client =
(to gen-
erate traffic).
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