Messages in this thread | | | Date | Wed, 22 Dec 1999 18:18:34 +1100 | From | Robert Cohen <> | Subject | Re: paxket shaping and scheduling problems |
| |
Robert Cohen wrote: > > I'm trying to do packet shaping and scheduling using Linux 2.2.14pre9. > I'm come across a couple of problems. > > My my first attempt was just to load the TBF module > > tc qdisc add dev eth0 root tbf rate 256Kbps buffer 2kB limit 10kB > > However I dont seem to be able to schedule rates below about 1Mbit. > Even when set to 256Kbps, the ftp throughput was 130KB/sec. > The kernal was compiled with packet scheduling set to PSCHED_JIFFIES. > I tried PSCHED_CPU but it didnt give good results. This is on a Pentium > MMX 200. Perhaps the Pentium doesnt have a proper CPU timestamp. I'm > going to try it on a Pentium III when I get a chance. >
Well I found the answer to this part of the problem. Turns out that rate 256Kbps is 256 Kbytes per sec not 256 Kbits per sec. If I want to specify in kbit I use "256kbit".
-- Robert Cohen - Network Administrator Apex Internet robert@apex.net.au http://www.apex.net.au Ph (02) 6247 2000 Fax: (02) 6247 2711
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |