From: Andy Furniss <andy.furniss@dsl.pipex.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] HTB traffic shaping odd effects
Date: Mon, 09 Jan 2006 17:41:51 +0000 [thread overview]
Message-ID: <43C2A05F.7000407@dsl.pipex.com> (raw)
In-Reply-To: <43BE1D93.2040409@anchor.com.au>
Oliver Hookins wrote:
>> burst 19k will limit you unless your HZ\x1000
>
> Our HZ is 512.
>
I don't know if it makes any difference, but I would have chosen 500 so
that it was 2ms. The default now is 250 and with 19k burst that fits the
speed you get really well - with 512 it would be around 70meg. I would
get rid of the 2 burst settings you use.
>> Not sure can you show output of tc -s -d class ls dev eth0 while it's
>> running at 2x speed.
>
>
> class htb 1:1 root rate 100Mbit ceil 100Mbit burst 24Kb/8 mpu 0b cburst
> 132644b/8 mpu 0b level 7
> Sent 741267447736 bytes 735629628 pkts (dropped 0, overlimits 0)
> rate 4316188bps 22688pps
> lended: 489885589 borrowed: 0 giants: 0
> tokens: -78 ctokens: 6677
>
> class htb 1:10 parent 1:1 leaf 10: prio 0 quantum 200000 rate 50Mbit
> ceil 80Mbit burst 19Kb/8 mpu 0b cburst 106440b/8 mpu 0b level 0
> Sent 740240463634 bytes 734522966 pkts (dropped 429910165, overlimits 0)
> rate 4233957bps 22358pps
> lended: 244988819 borrowed: 489885528 giants: 0
> tokens: -293 ctokens: 6636
>
> class htb 1:20 parent 1:1 leaf 20: prio 0 quantum 13107 rate 1Mbit ceil
> 1Mbit burst 2Kb/8 mpu 0b cburst 2Kb/8 mpu 0b level 0
> Sent 755354078 bytes 755048 pkts (dropped 0, overlimits 0)
> rate 84198bps 321pps backlog 4p
> lended: 755220 borrowed: 61 giants: 0
> tokens: -21517 ctokens: -21517
84198 bps - tc means bytes/sec by this, so it's < 1mbit. Htb uses really
long (100 sec) average for its rate so it probably is giving 1mbit.
Andy.
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prev parent reply other threads:[~2006-01-09 17:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-06 7:34 [LARTC] HTB traffic shaping odd effects Oliver Hookins
2006-01-06 9:17 ` Denis Ovsienko
2006-01-08 23:13 ` Oliver Hookins
2006-01-09 1:06 ` Andy Furniss
2006-01-09 1:11 ` Andy Furniss
2006-01-09 2:44 ` Oliver Hookins
2006-01-09 17:41 ` Andy Furniss [this message]
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