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Date:      Thu, 1 Mar 2012 18:02:36 +0100
From:      Michael Tuexen <tuexen@fh-muenster.de>
To:        Maxim Konovalov <maxim.konovalov@gmail.com>
Cc:        src-committers@FreeBSD.ORG, Andre Oppermann <andre@FreeBSD.ORG>, svn-src-user@FreeBSD.ORG
Subject:   Re: svn commit: r232345 - user/andre/tcp_workqueue/sys/netinet
Message-ID:  <C4A480F9-0C13-4851-A2CB-6373CB49442B@fh-muenster.de>
In-Reply-To: <alpine.BSF.2.00.1203012057350.91233@mp2.macomnet.net>
References:  <201203011618.q21GIdww086427@svn.freebsd.org> <alpine.BSF.2.00.1203012057350.91233@mp2.macomnet.net>

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On Mar 1, 2012, at 5:59 PM, Maxim Konovalov wrote:

> Hi Andre,
> 
> On Thu, 1 Mar 2012, 16:18-0000, Andre Oppermann wrote:
> 
>> Author: andre
>> Date: Thu Mar  1 16:18:39 2012
>> New Revision: 232345
>> URL: http://svn.freebsd.org/changeset/base/232345
>> 
>> Log:
>>  Increase the initial CWND to 10 segments as defined in IETF TCPM
>>  draft-ietf-tcpm-initcwnd-03 discussing why the higher initial window
>>  improves the overall performance of many web services without risking
>>  congestion collapse.
>> 
>>  As long as it remains a draft it is not enabled by default and placed
>>  under a sysctl marking it clearly as experimental:
>>   net.inet.tcp.exprimental.initcwnd10
>> 
>>  Linux as of kernel 3.0 has enabled it by default.
>> 
> Wouldn't it be better to just let user to specify icwnd size?
In SCTP we have a sysctl which gives the IW in MSS...

Best regards
Michael
> 
> -- 
> Maxim Konovalov
> 




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