Comparison of FreeBSD/Linux TCP Throughput performance

Steven Hartland killing at multiplay.co.uk
Mon Oct 19 13:41:05 UTC 2009


Its max not default, so relies on your configuring each app you want to have
high performance to take advantage of it. In our case that means our
large transfers easily saturate Gig.

    Regards
    Steve

----- Original Message ----- 
From: "Ivan Voras" <ivoras at freebsd.org>
To: <freebsd-performance at freebsd.org>
Sent: Monday, October 19, 2009 12:44 PM
Subject: Re: Comparison of FreeBSD/Linux TCP Throughput performance


> Steven Hartland wrote:
>> Try with something like this, which is the standard set we use on our
>> file serving machines.
>> 
>> net.inet.tcp.inflight.enable=0
>> net.inet.tcp.sendspace=65536
>> kern.ipc.maxsockbuf=16777216
>> net.inet.tcp.sendbuf_max=16777216
>> net.inet.tcp.recvbuf_max=16777216
> 
> 16 MB network buffers? What kind of % impact do you see from them?


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