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From: Andy Furniss <adf.lists@gmail.com>
To: xnor <xnoreq@gmail.com>, David Lang <david@lang.hm>
Cc: Cake@lists.bufferbloat.net
Subject: Re: [Cake] cake default target is too low for bbr?
Date: Sat, 29 Apr 2017 00:54:35 +0100	[thread overview]
Message-ID: <daef3f07-9828-3470-4462-fde786c891d7@gmail.com> (raw)
In-Reply-To: <5ca09d5c-e674-110a-72e4-b8fd434c7a5d@gmail.com>

Andy Furniss wrote:
> Andy Furniss wrote:
> 
>>> b) it reacts to increase in RTT. An experiment with 10 Mbps
>>> bottleneck, 40 ms RTT and a typical 1000 packet buffer, increase in
>>> RTT with BBR is ~3 ms while with cubic it is over 1000 ms.
>>
>> That is a nice aspect (though at 60mbit hfsc + 80ms bfifo I tested with
>> 5 tcps it was IIRC 20ms vs 80 for cubic). I deliberately test using ifb
>> on my PC because I want to pretend to be a router - IME (OK it was a
>> while ago) testing on eth directly gives different results - like the
>> locally generated tcp is backing off and giving different results.
> 
> I retested this with 40ms latency (netem) with hfsc + 1000 pfifo on ifb.

Forgot to put this was was 10mbit not 60.


  reply	other threads:[~2017-04-28 23:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.435.1493406198.3609.cake@lists.bufferbloat.net>
2017-04-28 21:11 ` xnor
2017-04-28 21:29   ` David Lang
2017-04-28 21:54     ` Andy Furniss
2017-04-28 22:02     ` xnor
2017-04-28 22:26       ` Andy Furniss
2017-04-28 23:52         ` Andy Furniss
2017-04-28 23:54           ` Andy Furniss [this message]
2017-05-03  9:50           ` Andy Furniss
2017-05-04  2:13             ` Jim Gettys
2017-05-04 10:22               ` Andy Furniss
2017-05-04 17:40                 ` Jim Gettys
2017-05-08 10:37                   ` Andy Furniss
2017-04-29  4:32         ` Jonathan Morton
2017-04-29 10:31           ` Andy Furniss
2017-04-28 19:03 Andy Furniss
2017-04-28 20:45 ` [Cake] " Andy Furniss

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