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From: Jean Tourrilhes <jt@bougret.hpl.hp.com>
To: James Stevenson <mail-lists@stev.org>
Cc: jt@hpl.hp.com, paulus@samba.org, linux-ppp@vger.kernel.org,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: PPP feature request (Tx queue len + close)
Date: Mon, 4 Mar 2002 17:01:01 -0800	[thread overview]
Message-ID: <20020304170101.A32589@bougret.hpl.hp.com> (raw)
In-Reply-To: <20020304144200.A32397@bougret.hpl.hp.com> <002701c1c3e0$7f5a27b0$0501a8c0@Stev.org>
In-Reply-To: <002701c1c3e0$7f5a27b0$0501a8c0@Stev.org>; from mail-lists@stev.org on Tue, Mar 05, 2002 at 12:55:51AM -0000

On Tue, Mar 05, 2002 at 12:55:51AM -0000, James Stevenson wrote:
> > Tx queue length
> > ---------------
> > Problem : IrDA does its buffering (IrTTP is a sliding window
> > protocol). PPP does its buffering (1 packet in ppp_generic +
> > dev->tx_queue_len = 3). End result : a large number of packets queued
> > for transmissions, which result in some network performance issues.
> >
> > Solution : could we allow the PPP channel to overwrite
> > dev->tx_queue_len ?
> > This is similar to the channel beeing able to set the MTUs and
> > other parameters...
> 
> somebody please correct me if i am wrong but if the
> txqueuelen not set from userspace from
> ifconfig ?

linux/drivers/net/ppp_generic.c, line 888, ppp_net_init()
------------------------
	dev->tx_queue_len = 3;
------------------------

	Jean

  reply	other threads:[~2002-03-05  1:01 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-04 22:42 Jean Tourrilhes
2002-03-05  0:55 ` James Stevenson
2002-03-05  1:01   ` Jean Tourrilhes [this message]
2002-03-05  3:05 ` Paul Mackerras
2002-03-05  3:19   ` Jean Tourrilhes
2002-03-05 18:13     ` Maksim Krasnyanskiy
2002-03-05 18:28       ` Jean Tourrilhes
2002-03-05 19:15         ` James Carlson
2002-03-05 19:27           ` Jean Tourrilhes
2002-03-05 21:49             ` James Carlson
2002-03-05 21:17         ` Maksim Krasnyanskiy
2002-03-05 21:27           ` Jean Tourrilhes
2002-03-05  5:20   ` Paul Mackerras
2002-03-05 17:45     ` Jean Tourrilhes
2002-03-05 19:39       ` Maksim Krasnyanskiy
2002-03-05 20:23         ` Jean Tourrilhes
2002-03-05 22:48 ` Bill Davidsen

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