From: Abraham van der Merwe <abz@frogfoot.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] how to get the latency down on maxed out classes?
Date: Mon, 09 Dec 2002 16:11:25 +0000 [thread overview]
Message-ID: <marc-lartc-103945037519317@msgid-missing> (raw)
In-Reply-To: <marc-lartc-103926701306950@msgid-missing>
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Hi Don!
> > I then tried fifos. With small packet fifos the packet loss is just
> > to great to be of any use and even then the latency is quite high (~200ms).
> You consider 200ms high? One max size packet = 1500 bytes = 12Kbit
> which is about 200ms on a 64Kbit link. You can't expect to do better.
The problem is that with 200ms the packet loss is so much that the link is
effectively useless (90% packet loss). As soon as I make the queue big
enough to not drop significant amounts of packets, the latency goes way up
(>3 secs).
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next prev parent reply other threads:[~2002-12-09 16:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-07 13:15 [LARTC] how to get the latency down on maxed out classes? Abraham van der Merwe
2002-12-07 13:43 ` hare ram
2002-12-07 15:15 ` Stef Coene
2002-12-07 16:49 ` Abraham van der Merwe
2002-12-08 12:09 ` Stef Coene
2002-12-08 16:27 ` David Boreham
2002-12-08 17:30 ` Don Cohen
2002-12-09 16:11 ` Abraham van der Merwe [this message]
2002-12-09 16:44 ` Don Cohen
2002-12-09 18:39 ` David Boreham
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