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Date:      Thu, 12 Aug 2010 15:34:49 +0200
From:      Andre Oppermann <oppermann@networx.ch>
To:        Steven Hartland <killing@multiplay.co.uk>
Cc:        eschoedler@viavale.com.br, karl@khakkinen.com, bug-followup@freebsd.org, net@freebsd.org
Subject:   Re: kern/141314: Network Performance has decreased by 30%[regression]
Message-ID:  <4C63F879.9040409@networx.ch>
In-Reply-To: <08314D938871496DBCB5DFF19007F0BE@multiplay.co.uk>
References:  <4C63E921.4040803@networx.ch> <08314D938871496DBCB5DFF19007F0BE@multiplay.co.uk>

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On 12.08.2010 15:04, Steven Hartland wrote:
> Also if you have a large kern.ipc.maxsockbuf set try removing it
> we experienced a significant slow down when moving from 7 to 8 with
> large values for kern.ipc.maxsockbuf.

This may be an unrelated problem with window scaling and broken firewalls.

> Regards
> Steve
> ----- Original Message ----- From: "Andre Oppermann" <oppermann@networx.ch>
>
>
>> Karl,
>>
>> What is the RTT (ping time) between your test servers?
>>
>> Please try again with the following sysctl disabled:
>> sysctl net.inet.tcp.inflight.enable=0
>
>
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