similar to: what''s the meaning of this "struct qdisc_rate_table"

Hi, I use the patch (http://ace-host.stuart.id.au/russell/files/tc/tc-atm/) for accurate the packet scheduling on ATM/ADSL link and i think I''ve found a bug. I tried to write to the author but he didn''t answer me. I work on a Linux 2.6.17 with the iproute2-2.6.18-061002 package. I change the type of the cell_align char to short of the struct tc_ratespec in the file pkt_sched.h

The HTB qdisc has a compile time option, HTB_HYSTERESIS, that trades accuracy of traffic classification for CPU time. These patches change hysteresis to be a runtime option under the control of "tc". The effects of HYSTERESIS on HTB''s accuracy are significant (see chapter 7, section 7.3.1, pp 69-70 in Jesper Brouer''s thesis: http://www.adsl-optimizer.dk/thesis/ ),

lartc-request,hello! 　　 I find a line in tbf_change() in sch_tbf.c: ptab = xchg(&q->P_tab, ptab); Can I consider that the pointers are exchanged between q->P_tab and ptab? as following: prev=q->R_tab; q->R_tab = rtab; rtab = prev; Is my understanding righ? ======= 2002-03-23 12:01:00 you wrote:======= >Send LARTC mailing list

I have been trying to optimise my ADSL connections for VOIP. Funny things were happening - for example increasing the ping packet size by 50% had no effect, but then adding one byte had a major effect. It took me a while to figure out that I was seeing the effects of the fixed ATM cell size. This is probably obvious to some of you. For the rest: ADSL uses ATM as its transport. An ATM

The HTB qdisc has a compile time option, HTB_HYSTERESIS, that trades accuracy of traffic classification for CPU time. These patches change hysteresis to be a runtime option under the control of "tc". The effects of HYSTERESIS on HTB''s accuracy are significant (see chapter 7, section 7.3.1, pp 69-70 in Jesper Brouer''s thesis: http://www.adsl-optimizer.dk/thesis/ ),

OK, here it is. Near perfect bandwidth calculation for ADSL users. Patch iproute2 with the HTB stuff and then this: It''s still a hack (as far as I can tell) because we are patching the rates tables, and hence I think it is only loosly coupled with the actual calculation of bytes in each bucket. However, it works very nicely for me! I have only been lightly testing with

Hi everyone. I''m new to this list and I have some questions regarding HTB class. I was trying to see how tc sets the parameters for HTB, but really couldnt understand them. So, I thought that I might ask the wizards. It''s mainly from the source code. 1. What is the cell_log ? (its everywhere in the code) 2. Why does htb calculate its burst(buffer) with tc_xmit_time() ? Is

what's the meaning of this line in htb_activate() cl->prio_activity = 1 << (cl->un.leaf.aprio = cl->un.leaf.prio); who can help me? ,S f)鄸+-L)殜Y殱=jya囤f蟌瀇鎗)fj鍔薭濟?暘韕s朙鑝稛暘韗娻

Hi, I''ve written a small javascript ADSL throughput calculator: http://nukunuku.yamamaya.is-a-geek.org/~ranma/adsl.html Feel free to submit alternative presets (I currently have presets for three german telecom speed variants: T-DSL (1000|2000|3000), derived from http://www2.lancom.de/kb.nsf/5d445c701b3ff52dc1256e7700297e5c/27c6ee1c3e3f74b0c1256e94004a433e?OpenDocument). Comments,

A bit more detail. I have the following htb classes set up... class htb 1:356 parent 1:4 leaf 356: prio 4 quantum 1600 rate 12800bit ceil 51680bit burst 15Kb/8 mpu 0b overhead 0b cburst 1663b/8 mpu 0b overhead 0b level 0 class htb 1:357 parent 1:4 leaf 357: prio 4 quantum 1600 rate 12800bit ceil 51680bit burst 15Kb/8 mpu 0b overhead 0b cburst 1663b/8 mpu 0b overhead 0b level 0 class htb 1:2 root

Thanks for quick reply Andreas! > Every class is allowed to use bandwidth as long as it does not have to > borrow (the specified rate is guaranteed). Prio in HTB only affects > borrowing bandwidth from other classes... In the example below, the class > 1:5 should be allowed to borrow bandwidth before 1:14 does. Thats exactly what I want from HTB to do..to prio the borrowed bandwidth.

Hello, i have a htb setup where the root and (nearly) all child classes has a ceil rate with max up from my adsl line. But the root class don''t reach the ceil value but some childs are get a huge backlog. My setup: (tc -d class show dev ppp0) [cleaned a bit] ******************************************************** class htb 1:1 root rate 576000bit ceil 576000bit burst 30Kb/8 cburst

Here goes the filter statements: #Initializing traffic control... tc qdisc add dev br0 root handle 1:0 htb #Loading queue disciplines for plis230 network... tc class add dev br0 parent 1:0 classid 1:1 htb rate 512kbit ceil 512kbit #Loading queue disciplines for pmad048 network... tc class add dev br0 parent 1:1 classid 1:20 htb rate 30kbit ceil 30kbit #server queue tc class add dev br0 parent

Hi Lang, Yeah, I remember this case. Basically what’s happening is that there are relocations for ELF on x86 that use a value that is present in the object image as part of the calculation for the final value that goes in the same location. If you ever find yourself applying relocations for a second time (for instance, because the loaded object location is remapped for out-of-proc execution)

Hi, got a 25/25Mbit connection which is quite stuffed. So I applied htb rules. Uplink: class htb 1:1 root rate 24500Kbit ceil 24500Kbit burst 4661b/8 mpu 0b overhead 0b cburst 4661b/8 mpu 0b overhead 0b level 7 Sent 430600689269 bytes 730147320 pkt (dropped 0, overlimits 0 requeues 0) rate 23057Kbit 5520pps backlog 0b 0p requeues 0 lended: 199673949 borrowed: 0 giants: 0 tokens: -964

My hardware is a Linksys AP with MIPS 300MHz and Linux kernel 2.4.20. The traffics are from two LAN switch ports to WAN port. And the traffics are generate at a rate of 80Mbit. So the total traffic to WAN port is 160Mbit. The shaping works well that the traffic to WAN port is about 50/30Mbit according to configuration. But the priority seems strange when the root rate is 50Mbit. When the root

Hello all, when running tc -s -d class show dev eth, the parent class rate and ceil are different to the configuration? his is the first time I have used HTB so I may have made some basic mistakes. Thanks in advance Shaun Output as follows: class htb 1:1 root rate 760Mbit ceil 760Mbit burst 997641b/8 mpu 0b cburst 997641b/8 mpu 0b level 7 Sent 0 bytes 0 pkts (dropped 0, overlimits 0)

Hello. The problems are: 1. Using HTB I get negative values for tokens and ctokens in tc -s output, for example: mich:~# tc -s -d class show dev eth0 class htb 1:11 parent 1:1 prio 1 quantum 1024 rate 8Kbit ceil 23Kbit burst 1609b/8 mpu 0b cburst 1628b/8 mpu 0b level 0 Sent 0 bytes 0 pkts (dropped 0, overlimits 0) lended: 0 borrowed: 0 giants: 0 tokens: 1287999 ctokens: 453286 class htb 1:1

hello, i have a config that is with a large domain of rate, from 2kb to 40Mb and i have some problems with i don''t know how to deal with. so here are some classes 2 with q=1000, one with q 200000 and one with q=6400, all have been calculated by htb, in the code i speficien just rate,ceil, no quantum, no r2q, no bursts ($tc class add $IF_INT parent 1:2 classid 1:21 htb rate

Hi When I list all the qdisc with tc command it is not possible to see the parent of the qdisc. An example by the book. # tc qdisc add dev eth0 root handle 1: htb default 30 # tc class add dev eth0 parent 1: classid 1:1 htb rate 6mbit burst 15k # tc class add dev eth0 parent 1:1 classid 1:10 htb rate 5mbit burst 15k # tc class add dev eth0 parent 1:1 classid 1:20 htb rate 3mbit ceil 6mbit