From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?QXJ0xatyYXMgxaBsYWp1cw==?= Date: Wed, 06 Jul 2005 18:16:46 +0000 Subject: [LARTC] HFSC default upper-limit trouble Message-Id: <42CC2D0E.5010903@kitas.arturas.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Hello, I'm having such problem with HFSC with following config: + tc qdisc del dev eth3 root + tc qdisc add dev eth3 root handle 1: hfsc default 2 + tc class add dev eth3 parent 1: classid 1:1 hfsc ls rate 512kbit ul rate 512kbit + tc class add dev eth3 parent 1:1 classid 1:2 hfsc ls rate 2kbit ul rate 400kbit + tc class add dev eth3 parent 1:1 classid 1:3 hfsc ls rate 32kbit ul rate 32kbit + tc class add dev eth3 parent 1:1 classid 1:4 hfsc ls rate 300kbit ul rate 300kbit Let's say i start to upload thru 1:3. the upper-limit applies, traffic doesn't do up more than 4kb/s. The 1:4 is still functional, but 1:2, the default class starts backlogging and dropping as hell: class hfsc 1: root Sent 0 bytes 0 pkts (dropped 0, overlimits 0) period 0 level 2 class hfsc 1:1 parent 1: ls m1 0bit d 0us m2 512000bit ul m1 0bit d 0us m2 512000bit Sent 0 bytes 0 pkts (dropped 0, overlimits 0) <-- This is weird too ^_^ period 2643 work 821712 bytes level 1 class hfsc 1:2 parent 1:1 ls m1 0bit d 0us m2 2000bit ul m1 0bit d 0us m2 400000bit Sent 477205 bytes 3874 pkts (dropped 0, overlimits 0) backlog 201p <-- HUH? (it goes even to 800p..1000p then it starts dropping) period 2494 work 456595 bytes level 0 class hfsc 1:3 parent 1:1 ls m1 0bit d 0us m2 32000bit ul m1 0bit d 0us m2 32000bit Sent 350599 bytes 558 pkts (dropped 0, overlimits 0) backlog 11p period 70 work 342761 bytes level 0 class hfsc 1:4 parent 1:1 ls m1 0bit d 0us m2 300000bit ul m1 0bit d 0us m2 300000bit Sent 22356 bytes 214 pkts (dropped 0, overlimits 0) period 212 work 22356 bytes level 0 The 1:1 shows no packets sent as you see.. Is this desirable behavior? The default class kinda becomes unusable. Can someone explain me such behavior? _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc