netdev - Re: [PATCH iproute2] Re: HTB accuracy for high speed

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Date:	Tue, 19 May 2009 15:18:47 +0200 (CEST)
From:	Jesper Dangaard Brouer <hawk@...u.dk>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Antonio Almeida <vexwek@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	netdev@...r.kernel.org, kaber@...sh.net, davem@...emloft.net,
	devik@....cz, Eric Dumazet <dada1@...mosbay.com>
Subject: Re: [PATCH iproute2] Re: HTB accuracy for high speed


On Mon, 18 May 2009, Jarek Poplawski wrote:

> Since you're so kind... :-) There is a line in net/sched/sch_htb.c:
>
> #define HTB_HYSTERESIS 1        /* whether to use mode hysteresis for speedup */
>
> Could you change 1 to 0, and repeat these tests above after recompiling?

Notice its runtime adjustable via:
  /sys/module/sch_htb/parameters/htb_hysteresis

Since kernel version v2.6.26.


Cheers,
   Jesper Brouer

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