From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jody Shumaker Date: Fri, 23 Dec 2005 05:35:27 +0000 Subject: Re: [LARTC] exact rate Message-Id: <43AB8C9F.7070205@gmail.com> List-Id: References: <1383.217.79.71.231.1134565830.squirrel@217.79.71.231> In-Reply-To: <1383.217.79.71.231.1134565830.squirrel@217.79.71.231> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Thing is, it did not work for me, because of that exact reason. I had issues with it ignoring rates and in general not giving the lower latency I was going for. I really wish someone would update it. lartc.org is broken right now, but I believe the version up there is 3 years old. - Jody Salim wrote: > What confuses me is, how the popular HTB script 'wondershaper' works! > The sum of its subclasses' rates is way over the parent's rate. > > ----- Original Message ----- > *From:* Jody Shumaker > *To:* Anton Glinkov > *Cc:* lartc@mailman.ds9a.nl > *Sent:* Friday, December 23, 2005 4:22 AM > *Subject:* Re: [LARTC] exact rate > > Your subclass's combined rate's should never exceed your parent > class's rate, and in this case your parent class is 5mbit, yet > your subclasses have a combined guarenteed bandwidth of 6mbit. In > my setup, the root classes rate is followed strictly. With > burst, it may go over temporarily but over say a minute's time, > the bandwidth is pretty close to the set rate, usualy within > ~0.4%. I'm unsure on what the behavior is when you allocate more > bandwidth to subclasses than the root, but it may be the reason > you're not seeing accurate results. > > - Jody > > On 12/14/05, *Anton Glinkov* > > wrote: > > Hello > I am using htb (krenel 2.6.14.3 + esfq patch > from fatooh.org ) to limit the > bandwidth. But I want the absolute maximum rate to be for > example 5Mbit > and not to exceed it. > > here is the script: > > $tc qdisc add dev ${NETIF} root handle 1 htb r2q 4 > $tc class add dev ${NETIF} parent 1: classid 1:21 htb rate > 5Mbit ceil 5Mbit > $tc class add dev ${NETIF} parent 1:21 classid 1:101 htb rate > 2Mbit ceil > 5Mbit prio 1 > $tc class add dev ${NETIF} parent 1:21 classid 1:102 htb rate > 1Mbit ceil > 5Mbit prio 2 > $tc class add dev ${NETIF} parent 1:21 classid 1:103 htb rate > 3Mbit ceil > 5Mbit prio 3 > > when I don't specify burst the flow always exceeds 5Mbit > when I try to play with it (the burst) for example turning it > off completely > burst 0 cburst 0 for parent and children classes the rate > falls ot 2-3 Mbits > > removing the esfq qdiscs doesn't change anything... > > I want exact rate of 5Mbit for the parent class and no more? > > any suggestions are welcome :) > > -- > Anton Glinkov > network administrator > _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc