Date: Mon, 19 Oct 2009 14:40:26 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: <freebsd-performance@freebsd.org>, "Ivan Voras" <ivoras@freebsd.org> Subject: Re: Comparison of FreeBSD/Linux TCP Throughput performance Message-ID: <AAD3E472E4F3446CA0318F2B619BCD87@multiplay.co.uk> References: <78DB4AE8EF5F4A1EBD3992D7404B2725@china.huawei.com><d763ac660910180755i7f6fd3c7q8578bfed11978b9d@mail.gmail.com><ee9f3b480910181305x5c8661a7mb7bfdd2ddd0a267d@mail.gmail.com> <d763ac660910181836p45aedc37v1c77f5e96b6df13b@mail.gmail.com><EE345038BF2D4A17A8D6B64F5B451292@multiplay.co.uk> <hbhjfg$sjk$2@ger.gmane.org>
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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@freebsd.org>
To: <freebsd-performance@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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