From: Andrea Arcangeli <andrea@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Larry McVoy <lm@work.bitmover.com>, Larry McVoy <lm@bitmover.com>,
Pascal Schmidt <der.eremit@email.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: bandwidth for bkbits.net (good news)
Date: Mon, 1 Sep 2003 18:13:16 +0200 [thread overview]
Message-ID: <20030901161316.GH11503@dualathlon.random> (raw)
In-Reply-To: <1062416635.13372.17.camel@dhcp23.swansea.linux.org.uk>
On Mon, Sep 01, 2003 at 12:43:56PM +0100, Alan Cox wrote:
> On Llu, 2003-09-01 at 00:22, Andrea Arcangeli wrote:
> > the only difference I believe is that the connections are originated by
> > my end, but that only changes the syn packet that normally accounts for
> > a non significant amount of the bandwidth. And while this is located in
> > a house, this isn't what I would call an home user usage.
>
> Each ACK that has caused previous delays generally opens up a 64K window
> so you get bursts of data incoming. A sequence of acks can cause the
the congestion avoidance shouldn't allow what you say. It sends a few
packets immediatly (cwnd starts > 1 recently), and that's why
non-keepalive connections are bad, but after that the congestion window
will remain low if we drop the packets.
> incoming pipe to fill enough to screw up voip very easily.
>
> Window bending stuff does help and certainly the packeteer boxes use it
> to good effect. I've never tried that on Linux but even then Im dubious
> that just cutting the routes down to an 8K window would help
The only object of my posts was to try to correct the misinformation
that was spreading from Larry's posts that implied you had to buy a
speparate connection to shape the bitkeeper connections doing clones of
the tree. That's what I and everybody else understood. Now apparently he
was wrong and the hurting factor aren't the bitkeeper clients cloning
the tree but the webserver. So I'm glad to have reached my object.
Andrea
next prev parent reply other threads:[~2003-09-01 16:12 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <q2SH.AA.3@gated-at.bofh.it>
[not found] ` <qfwI.15D.27@gated-at.bofh.it>
[not found] ` <qgCn.2y4.11@gated-at.bofh.it>
2003-08-30 22:58 ` bandwidth for bkbits.net (good news) Pascal Schmidt
2003-08-30 23:07 ` Larry McVoy
2003-08-31 1:05 ` Pascal Schmidt
2003-08-31 1:39 ` Andrea Arcangeli
2003-08-31 2:18 ` Jeff Sipek
2003-08-31 2:42 ` Andrea Arcangeli
2003-08-31 2:56 ` Larry McVoy
2003-08-31 13:15 ` Alan Cox
2003-08-31 14:45 ` Andrea Arcangeli
2003-08-31 15:31 ` Alan Cox
2003-08-31 15:43 ` Jörn Engel
2003-08-31 15:50 ` Andrea Arcangeli
2003-08-31 17:06 ` Florian Weimer
2003-08-31 21:21 ` Larry McVoy
2003-09-02 7:06 ` Henning P. Schmiedehausen
2003-09-05 8:10 ` Florian Weimer
2003-09-05 15:35 ` Henning Schmiedehausen
2003-09-05 15:50 ` Florian Weimer
2003-09-05 16:10 ` P
2003-09-05 16:43 ` Ricky Beam
2003-09-07 11:55 ` Henning Schmiedehausen
2003-09-07 18:41 ` Ricky Beam
2003-09-08 8:57 ` [COMPLETELY OFF-TOPIC] " Henning Schmiedehausen
2003-09-02 21:52 ` Ricky Beam
2003-09-05 8:16 ` Florian Weimer
2003-08-31 15:44 ` Andrea Arcangeli
2003-08-31 16:22 ` Larry McVoy
2003-08-31 16:33 ` Andrea Arcangeli
2003-08-31 16:48 ` Larry McVoy
2003-08-31 17:06 ` Andrea Arcangeli
2003-08-31 21:18 ` Larry McVoy
2003-08-31 22:49 ` Andrea Arcangeli
2003-08-31 22:52 ` Alan Cox
2003-08-31 22:58 ` Larry McVoy
2003-08-31 23:02 ` Andrea Arcangeli
2003-08-31 23:07 ` Larry McVoy
2003-08-31 23:22 ` Andrea Arcangeli
2003-09-01 0:12 ` Larry McVoy
2003-09-01 0:19 ` Jamie Lokier
2003-09-01 0:33 ` Larry McVoy
2003-09-01 11:43 ` Alan Cox
2003-09-01 16:13 ` Andrea Arcangeli [this message]
2003-09-01 16:24 ` Larry McVoy
2003-09-01 16:28 ` Alan Cox
2003-09-01 16:38 ` Andrea Arcangeli
2003-08-31 23:39 ` Roman Zippel
2003-09-01 0:09 ` Larry McVoy
2003-09-01 0:20 ` Larry McVoy
2003-08-31 22:56 ` Larry McVoy
2003-08-31 23:13 ` Andrea Arcangeli
2003-09-01 0:18 ` Jamie Lokier
2003-09-01 0:25 ` Larry McVoy
2003-09-01 0:28 ` Andrea Arcangeli
2003-09-01 0:50 ` Jamie Lokier
2003-09-01 1:10 ` Andrea Arcangeli
2003-09-01 1:33 ` Larry McVoy
2003-09-02 7:11 ` Henning P. Schmiedehausen
2003-09-02 7:01 ` Henning P. Schmiedehausen
2003-08-31 16:23 ` Larry McVoy
2003-08-31 16:36 ` Andrea Arcangeli
2003-08-31 15:38 ` Jörn Engel
2003-09-02 6:55 ` Henning P. Schmiedehausen
2003-08-31 13:47 ` Pascal Schmidt
2003-08-31 14:51 ` Andrea Arcangeli
2003-09-02 6:53 ` Henning P. Schmiedehausen
2003-08-31 6:30 ` Jörn Engel
[not found] <qn1b.2Pr.29@gated-at.bofh.it>
[not found] ` <qoTh.5mt.11@gated-at.bofh.it>
[not found] ` <rdje.1sH.11@gated-at.bofh.it>
2003-09-02 17:49 ` Pascal Schmidt
2003-08-30 1:29 Larry McVoy
2003-08-30 15:03 ` Larry McVoy
2003-08-30 16:10 ` Jörn Engel
2003-08-31 10:13 ` Toon van der Pas
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