From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stef Coene Date: Sat, 31 Jan 2004 10:03:27 +0000 Subject: Re: [LARTC] HTB dequeueing in pairs fixed Message-Id: <200401311103.27791.stef.coene@docum.org> List-Id: References: <401B0773.9020005@dsl.pipex.com> In-Reply-To: <401B0773.9020005@dsl.pipex.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org On Saturday 31 January 2004 02:40, Andy Furniss wrote: > I posted earlier when I noticed that htb was releasing packets in pairs, > even though my burst/quantums were 1 pkt. > > To fix I set HTB_HYSTERESIS 0 in net/sched/sch_htb.c . > > This gives a noticable gain in upstream worst case latency, for me with > 256kbit/s up I used to see +90 sometimes, now it's +45. For the many who > have 128 up it should limit them to +90 rather than +180. Devik told me that disabling hysteresis will give you more accuracy, but you will loose speed. I had to disable hysteresis when I did some bursts tests. http://docum.org/stef.coene/qos/faq/cache/36.html Stef -- stef.coene@docum.org "Using Linux as bandwidth manager" http://www.docum.org/ #lartc @ irc.openprojects.net _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/