From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Verbeek Date: Tue, 26 Aug 2003 21:25:18 +0000 Subject: Re[2]: [LARTC] QOS and gameserver lags Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Monday, August 25, 2003, 7:25:39 PM, Stef wrote: SC> Can you check the bandwidth used in the different classes? I have a script on SC> www.docum.org that can do this for you. I ask this because you have SC> different prio's and you have to be sure you never overlimit a class (send SC> more then the rate) or the latency can go up. OK, I checked the bandwidth with monitor_tc.pl: everythings looks okay. The increased latenca does not come from different prios. But I still put every class on prio 0. SC> You also have to check the quantum values. For the 10 kbit class, quantum = 10kbit / 8 (bit ->> byte) / 10 (r2q) = 12.5 byte and this < mtu = 1500 byte. SC> So add quantum 1500 if you create that class. OK. I set quantum 1500 on the small class. But the solution to my problem is much simpler: my Provider says I get 192 kbits upstream. When I do an ftp upload to a close server I get 175 kbits. But to make my linux router the bottleneck I need to limit the rate to 160 kbits!!!! Can anybody explain the difference in the numbers? Please see the current version of my shaper here: http://www.designobjekt.de/test/rc.trafficshaper Now I only get minimally increased latency when playing online games and having 100% upstream traffic at the same time. Cheers, Tom. -- Word Perfect isn't, Excel doesn't, Works won't. _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/