From: Stephen Hemminger <shemminger@osdl.org>
To: "George P Nychis" <gnychis@cmu.edu>
Cc: netdev@vger.kernel.org
Subject: Re: 2.4 kern: want to print TCP cwnd with every packet
Date: Mon, 8 May 2006 10:31:23 -0700 [thread overview]
Message-ID: <20060508103123.38b10e56@localhost.localdomain> (raw)
In-Reply-To: <28365.128.237.227.255.1146925156.squirrel@128.237.227.255>
On Sat, 6 May 2006 10:19:16 -0400 (EDT)
"George P Nychis" <gnychis@cmu.edu> wrote:
> Hi,
>
> I'd like to print the TCP cwnd for the sender, with every packet before it is sent out. This way i could plot the sender window over time to show TCP's behavior in certain conditions.
>
> I see in tcp_input.c several places where i could print the current window, but i'd have to add code in multiple places. I was wondering if there is any 1 place, right before a packet is sent out, that i could printk() tp->snd_cwnd
>
> Thanks!
> George
>
> -
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Look at http://developer.osdl.org/shemminger/prototypes/tcpprobe.tar.gz
prev parent reply other threads:[~2006-05-08 17:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-06 14:19 2.4 kern: want to print TCP cwnd with every packet George P Nychis
2006-05-08 17:31 ` Stephen Hemminger [this message]
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