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From: Ed Wildgoose <lists@wildgooses.com>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: netdev@oss.sgi.com, lartc@mailman.ds9a.nl
Subject: Re: Re: [PATCH 2.6] update to network emulation QOS scheduler
Date: Sat, 03 Jul 2004 14:32:17 +0100	[thread overview]
Message-ID: <40E6B561.4050200@wildgooses.com> (raw)
In-Reply-To: <20040702134437.5891e998@dell_ss3.pdx.osdl.net>


>Here is an enhancement to netem to do allow emulating lower speed 
>networks.  The resolution is close, but obviously limited by the
>granularity of timers and size of packets.
>  
>

Hi Stephen,

This looks extremely useful.

I have a need for a simulator for the Iridium Satellite phone network, 
this is at most 2,400 baud with perhaps 1 sec or more latency.  Do you 
expect this scheduler to be able to do this slow?

On a related note, for better accuracy I currently need a bit of 
stochastic variability on the latency, ie assume a 1 sec min delay, but 
also to vary that a little through time.  Have you considered adding 
that as a feature?

Thanks

Ed W

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  parent reply	other threads:[~2004-07-03 13:32 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-01 18:33 [PATCH 2.6] update to network emulation QOS scheduler Stephen Hemminger
2004-07-01 20:11 ` [PATCH 2.4] " Stephen Hemminger
2004-07-06 21:06   ` David S. Miller
2004-07-02 20:44 ` [PATCH 2.6] " Stephen Hemminger
2004-07-03  3:13   ` jamal
2004-07-06  2:49     ` David S. Miller
2004-07-06 13:04       ` jamal
2004-07-06 21:41         ` David S. Miller
2004-07-07  6:39         ` Catalin BOIE
2004-07-06 16:09     ` Stephen Hemminger
2004-07-07  1:36       ` jamal
2004-07-07  1:51         ` David S. Miller
2004-07-07  7:01         ` Catalin BOIE
2004-07-07 18:44           ` jamal
2004-07-07 18:10     ` Stephen Hemminger
2004-07-07 18:57       ` jamal
2004-07-07 20:58         ` Stephen Hemminger
2004-07-07 21:11           ` jamal
2004-07-07 21:22             ` Stephen Hemminger
2004-07-08 13:36               ` jamal
2004-07-03 13:32   ` Ed Wildgoose [this message]
2004-07-06 21:02 ` David S. Miller

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