From: Stephen Hemminger <shemminger@vyatta.com>
To: Syed Obaid Amin <obaidasyed@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: About disabling congestion control
Date: Thu, 6 Jan 2011 17:37:58 -0800 [thread overview]
Message-ID: <20110106173758.37bfef4d@nehalam> (raw)
In-Reply-To: <AANLkTin53drsv18TZ0CPZM7==6G=rK6vScUb=SCQ4-xr@mail.gmail.com>
On Thu, 6 Jan 2011 20:25:18 -0500
Syed Obaid Amin <obaidasyed@gmail.com> wrote:
> Hey all,
>
> I am currently working on a socket option to disable the tcp
> congestion control. I think the simplest approach to do this is to
> ignore cwnd before sending out a packet.
>
> After going through tcp output engine it seems that tcp_cwnd_test is
> the method that decides that how many segments can be sent out on a
> wire. For testing it out, I changed this method so that if no-cc
> option is ON, just return a big constant value. But, it didn't work
> and I am unable to see a burst of pkts. It looks like that I am
> missing something here.
>
> Any suggestions that what is the right place to look for disabling the
> congestion control ?
>
> Thanks much!
>
> Obaid
I assume this is just a local hack experiment; not something you
want to actually submit for other users to use...
The easiest/safest way to do this would be to build/define a new TCP congestion
control type that does nothing.
next prev parent reply other threads:[~2011-01-07 1:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-07 1:25 About disabling congestion control Syed Obaid Amin
2011-01-07 1:37 ` Stephen Hemminger [this message]
2011-01-07 10:04 ` Syed Obaid Amin
2011-01-07 10:33 ` Eric Dumazet
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