netdev - [PATCH 0/2] HTB scheduler HTB

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Message-Id: <1212501803.13164.27.camel@localhost.localdomain>
Date:	Tue, 03 Jun 2008 16:03:23 +0200
From:	Jesper Dangaard Brouer <jdb@...x.dk>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Jesper Dangaard Brouer <jdb@...x.dk>,
	Martin Devera <devik@....cz>
Subject: [PATCH 0/2] HTB scheduler HTB_HYSTERESIS modifications

This patch set modifies the HTB schedulers hysteresis mode.  The HTB
hysteresis is a hack to reduce the CPU load, it introduces significant
jitter, enough to disturbe VoIP quality on e.g. ADSL.

The first patch changes HTB_HYSTERESIS to default off.

The second patch Change HTB_HYSTERESIS to a runtime parameter
htb_hysteresis, adjustable via
sys/module/sch_htb/parameters/htb_hysteresis.

For details about my measurements see masters thesis
(http://www.adsl-optimizer.dk/thesis/), chapter 7, section 7.3.1,
page 69-70.

-- 
Med venlig hilsen / Best regards
  Jesper Brouer
  ComX Networks A/S
  Linux Network developer
  Cand. Scient Datalog / MSc.
  Author of http://adsl-optimizer.dk
  LinkedIn: http://www.linkedin.com/in/brouer
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