remove cburst 1
-------------------------------
Martin Devera aka devik
Linux kernel QoS/HTB maintainer
http://luxik.cdi.cz/~devik/
On Tue, 6 Apr 2004, Michael Vasilenko wrote:
> devik (devik@xxxxxx) wrote:
> > I see you have cburst 0 ! It is not allowed
> > and is described in docs. What was commands to
> > create the classes ?
>
>
> /sbin/tc.3 qdisc add dev eth0 root handle 1:0 htb default 2500 r2q 100
> /sbin/tc.3 class add dev eth0 parent 1:0 classid 1:1 htb rate 200mbit ceil 200mbit quantum 200000
> /sbin/tc.3 class add dev eth0 parent 1:0 classid 1:2 htb rate 200mbit ceil 200mbit quantum 200000
> /sbin/tc.3 class add dev eth0 parent 1:1 classid 1:3500 htb rate 10Mbit ceil 10Mbit burst 2048b cburst 1
> /sbin/tc.3 qdisc add dev eth0 parent 1:3500 handle 3500: sfq perturb 5
> /sbin/tc.3 class add dev eth0 parent 1:2 classid 1:5500 htb rate 20Mbit ceil 20Mbit burst 2048b cburst 1 quantum 60000
> /sbin/tc.3 qdisc add dev eth0 parent 1:5500 handle 5500: sfq perturb 5
> /sbin/tc.3 filter add dev eth0 parent 1:0 protocol ip prio 50 handle 3500 fw classid 1:3500
> /sbin/tc.3 filter add dev eth0 parent 1:0 protocol ip prio 50 handle 5500 fw classid 1:5500
>
>
>
> tc.3 -V
> tc utility, iproute2-ss020116
>
> > On Tue, 6 Apr 2004, Michael Vasilenko wrote:
> >
> > > devik (devik@xxxxxx) wrote:
> > > > > > I suppose the drop you see is CPU bound ? Did you profiled it
> > > > > > again ?
> > > > >
> > > > > No, CPU is about times more in idle state in htb3, and
> > > > > 5x lowest data rate. AFAIK, htb3 scheduler is faster, so that is the
> > > > > reason of moving to htb3.
> > > >
> > > > ok then it is config issue probably. you should pin it down
> > > > to smallest possible number of classes for test (say up to
> > > > 5 classes) and then use tc -s show class ... to see internal
> > > > statistics. Look for classes with small (or negative)
> > > > tokens or ctokens - these are in throttling state and are
> > > > slowing throughtput - then think if it is ok ..
> > >
> > > ok
> > > I'm creating root with 200Mbit
> > > and parent with 10Mbit/1Mbit
> > >
> > >
> > > class htb 1:5500 parent 1:2 leaf 5500: prio 0 quantum 131072 rate 10Mbit ceil 12Mbit burst 2Kb/8 mpu 0b cburst 0b/8 mpu 0b level 0
> > > Sent 25443954 bytes 17155 pkts (dropped 0, overlimits 0)
> > > rate 143050bps 97pps backlog 25p
> > > lended: 17130 borrowed: 0 giants: 0
> > > tokens: 335 ctokens: -787
> > >
> > > class htb 1:1 root rate 200Mbit ceil 200Mbit burst 263690b/8 mpu 0b cburst 263690b/8 mpu 0b level 7
> > > Sent 482570 bytes 8712 pkts (dropped 0, overlimits 0)
> > > rate 2723bps 49pps
> > > lended: 0 borrowed: 0 giants: 0
> > > tokens: 8241 ctokens: 8241
> > >
> > > class htb 1:2 root rate 200Mbit ceil 200Mbit burst 263690b/8 mpu 0b cburst 263690b/8 mpu 0b level 7
> > > Sent 25406104 bytes 17130 pkts (dropped 0, overlimits 0)
> > > rate 144147bps 98pps
> > > lended: 0 borrowed: 0 giants: 0
> > > tokens: 8195 ctokens: 8195
> > >
> > > class htb 1:3500 parent 1:1 leaf 3500: prio 0 quantum 13107 rate 1Mbit ceil 1Mbit burst 2Kb/8 mpu 0b cburst 0b/8 mpu 0b level 0
> > > Sent 482570 bytes 8712 pkts (dropped 0, overlimits 0)
> > > rate 2739bps 49pps
> > > lended: 8712 borrowed: 0 giants: 0
> > > tokens: 12501 ctokens: -294
> > >
> > >
> > > so, rate is 1,2Mbit
> > > and what is meaning of negative ctokens?
> > >
> > > > >From data you send one can't decide what's bad. In any case
> > > > and as I said before, behavioue changed a bit so that results
> > > > can be a bit different a may need tc script changes.
> > > >
> > > > devik
> > > >
> > > > _______________________________________________
> > > > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx
> > > > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
> > >
> > > --
> > > Michael Vasilenko
> > >
> > >
> >
> > _______________________________________________
> > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx
> > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>
> --
> Michael Vasilenko
>
>
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