Gentoo Archives: gentoo-user

From: Florian Philipp <lists@×××××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] TCP Advanced Congestion Control -- any difference?
Date: Sun, 23 Oct 2011 12:05:49
Message-Id: 4EA402BF.7030305@binarywings.net
In Reply to: Re: [gentoo-user] TCP Advanced Congestion Control -- any difference? by Florian Philipp
1 Am 20.10.2011 18:11, schrieb Florian Philipp:
2 > Am 20.10.2011 15:10, schrieb Pandu Poluan:
3 >> Like the subject said: I am wondering if using a non-default TCP
4 >> Advanced Congestion Control makes any difference.
5 >>
6 >> (The default is "cubic", but there are alternatives such as "htcp",
7 >> "hybla", and "yeah")
8 >>
9 >> Any experiences?
10 >>
11 >
12 > I tested it on the only situation I had where it was even remotely worth
13 > the effort to try it: NFS over TCP via an old and overutilized router:
14 > No measurable effect. I guess a web or mail server (read: something that
15 > is not primarily bandwidth constrained and where latency matters) might
16 > benefit more. But then again, how do you measure that reliably?
17 >
18 > You also have to consider where the client might be. A long distance,
19 > high bandwidth connection will benefit from different congestion control
20 > mechanisms than a local low bandwidth connection.
21 >
22 > Regards,
23 > Florian Philipp
24 >
25
26 This paper and its references could be interesting.
27 http://research.google.com/pubs/archive/37486.pdf

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Re: [gentoo-user] TCP Advanced Congestion Control -- any difference? Pandu Poluan <pandu@××××××.info>