Andreas Klauer wrote: >If that SFQ is the standard sfq with a queuelength of 128 packets, >it might be responsible for some of the delay. > The command was: sfq perturb 10 > Unless you have >connections in there that can choke the whole bandwidth (probably >possible with CS if you set the rates up, I don't know), you may >not need SFQ for interactive bands at all. > > > I'll be glad to use pfifo_fast but adding that qdisc explicitly I get a segmentation fault. If I don't add a leaf qdisc, how can I be sure pfifo_fast is used? Or it's just a pfifo? >>People in my LAN play almost exclusively in MAN, not in the Internet. I >>allocated such high bandwidth because htb would allocate the spare based >>on classes' rates ratios. And since 1:1 is a root class as 1:2 and 1:3 >>(MAN and Internet respectively) it had to have such a rate even if it is >>not found in my real bandwidth. >> >> "//Any unused bandwidth can be used by any class which needs it (in proportion of its allocated share)." >From http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm _In proportion of its allocated share._ // >I've never dealt with MANs before, so I may be completely wrong. >Usually you should not have more than one root class, and you should >not let HTB think it can use more bandwidth than there actually is. >It's extremely hard to understand the logic behind setups like this >and therefore likely to get unexpected results from them. > > I am certain that CS does not have large banwidth requierments, but it needs very low latency. If I was to allocate a real bandwidth quantum, then the competition between CS and other traffic (MAN and Internet) would not be fair even if it has the lowest prio. So I had to lie htb about the available bandwidth based upon the fact that bandwidth requirements for CS are low and bursty. HTB would not allocate bandwidth to a service that doesn't need it. (Or so I think; I may be wrong about that... Please correct me if I do.). I need more that one root class, because the bandwidths are separate and not supperposable. So what MAN can spare, Internet cannot use and vice-versa. (And MAN can spare a lot!) I tested a setup with a 1:A root class and 1:1; 1:2; 1:3 and 1:4 were child classes of 1:A. I got the same results. But I needed to lower the latency so I deleted that 1:A root class... _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
