On Thu, 29 Mar 2007, Larry Finger wrote:
> Also on the FTP site are two Perl scripts for testing. One of them > (perf_test.pl) uses an Iperf > server somewhere on your LAN. The other (file_test.pl) works with an NFS > server on your LAN to > measure transfer rates. > Here is somet testing from me on my BCM4311 with a 2050 radio, the laptop was about 8 feet away from the AP. Rate set to 5.5 Mbs with iwconfig Transmit rate: 18.4 18.5 18.4 18.5 18.5 Mbits/sec, Max: 18.5, Min: 18.4, Average: 18.5, Sigma: 0.0 Receive rate: 18.6 18.5 18.5 18.5 18.5 Mbits/sec, Max: 18.6, Min: 18.5, Average: 18.5, Sigma: 0.0 Rate set to 6 Mbs with iwconfig Transmit rate: 16.5 18.2 18.4 18.4 13.8 Mbits/sec, Max: 18.4, Min: 13.8, Average: 17.1, Sigma: 1.8 Receive rate: 18.3 18.3 18.4 17.5 14.9 Mbits/sec, Max: 18.4, Min: 14.9, Average: 17.5, Sigma: 1.3 Rate set to 9 Mbs with iwconfig Transmit rate: 14.6 13.2 14.8 15.2 16.6 Mbits/sec, Max: 16.6, Min: 13.2, Average: 14.9, Sigma: 1.1 Receive rate: 13.9 15.0 16.0 16.2 16.6 Mbits/sec, Max: 16.6, Min: 13.9, Average: 15.5, Sigma: 1.0 Rate set to 11 Mbs with iwconfig Transmit rate: 16.3 14.3 11.3 10.7 11.2 Mbits/sec, Max: 16.3, Min: 10.7, Average: 12.8, Sigma: 2.2 Receive rate: 15.1 15.5 9.76 11.6 13.5 Mbits/sec, Max: 15.5, Min: 9.8, Average: 13.1, Sigma: 2.2 Rate set to 18 Mbs with iwconfig Transmit rate: 16.2 18.5 18.5 18.3 18.1 Mbits/sec, Max: 18.5, Min: 16.2, Average: 17.9, Sigma: 0.9 Receive rate: 17.1 18.4 18.1 18.2 17.9 Mbits/sec, Max: 18.4, Min: 17.1, Average: 17.9, Sigma: 0.4 Rate set to 24 Mbs with iwconfig Transmit rate: 18.3 17.9 17.2 18.2 18.5 Mbits/sec, Max: 18.5, Min: 17.2, Average: 18.0, Sigma: 0.5 Receive rate: 18.2 17.3 17.3 18.5 18.5 Mbits/sec, Max: 18.5, Min: 17.3, Average: 18.0, Sigma: 0.5 Rate set to 36 Mbs with iwconfig Transmit rate: 18.6 18.6 18.5 18.3 16.9 Mbits/sec, Max: 18.6, Min: 16.9, Average: 18.2, Sigma: 0.6 Receive rate: 18.7 18.4 18.4 16.8 17.2 Mbits/sec, Max: 18.7, Min: 16.8, Average: 17.9, Sigma: 0.8 Rate set to 48 Mbs with iwconfig Transmit rate: 15.9 17.0 15.8 18.5 17.9 Mbits/sec, Max: 18.5, Min: 15.8, Average: 17.0, Sigma: 1.1 Receive rate: 18.0 18.3 18.2 18.4 18.5 Mbits/sec, Max: 18.5, Min: 18.0, Average: 18.3, Sigma: 0.2 To put this in perspective here is what I got from the same setup using the ndiswrapper and the windows driver: Rate set to 5.5 Mbs with iwconfig Transmit rate: 4.23 4.19 4.27 4.26 4.29 Mbits/sec, Max: 4.29, Min: 4.19, Average: 4.25, Sigma: 0.03 Receive rate: 13.3 13.0 12.7 13.2 13.2 Mbits/sec, Max: 13.3, Min: 12.7, Average: 13.1, Sigma: 0.2 Rate set to 6 Mbs with iwconfig Transmit rate: 4.51 4.43 4.59 4.61 4.45 Mbits/sec, Max: 4.61, Min: 4.43, Average: 4.52, Sigma: 0.07 Receive rate: 16.5 16.0 16.3 15.2 16.4 Mbits/sec, Max: 16.5, Min: 15.2, Average: 16.1, Sigma: 0.5 Rate set to 9 Mbs with iwconfig Transmit rate: 6.39 6.11 6.36 6.42 6.36 Mbits/sec, Max: 6.42, Min: 6.11, Average: 6.33, Sigma: 0.11 Receive rate: 16.2 16.9 16.8 16.9 16.5 Mbits/sec, Max: 16.9, Min: 16.2, Average: 16.7, Sigma: 0.3 Rate set to 11 Mbs with iwconfig Transmit rate: 6.74 6.86 6.82 6.74 6.85 Mbits/sec, Max: 6.86, Min: 6.74, Average: 6.80, Sigma: 0.05 Receive rate: 14.0 14.0 14.0 13.9 14.0 Mbits/sec, Max: 14.0, Min: 13.9, Average: 14.0, Sigma: 0.0 Rate set to 18 Mbs with iwconfig Transmit rate: 10.8 10.9 10.8 10.8 10.8 Mbits/sec, Max: 10.9, Min: 10.8, Average: 10.8, Sigma: 0.0 Receive rate: 17.4 17.4 17.9 17.8 17.7 Mbits/sec, Max: 17.9, Min: 17.4, Average: 17.6, Sigma: 0.2 Rate set to 24 Mbs with iwconfig Transmit rate: 12.9 13.0 13.2 13.0 12.9 Mbits/sec, Max: 13.2, Min: 12.9, Average: 13.0, Sigma: 0.1 Receive rate: 17.9 17.9 18.0 18.1 17.8 Mbits/sec, Max: 18.1, Min: 17.8, Average: 17.9, Sigma: 0.1 Rate set to 36 Mbs with iwconfig Transmit rate: 16.3 16.1 15.9 16.0 16.1 Mbits/sec, Max: 16.3, Min: 15.9, Average: 16.1, Sigma: 0.1 Receive rate: 18.3 17.3 17.5 18.1 18.1 Mbits/sec, Max: 18.3, Min: 17.3, Average: 17.9, Sigma: 0.4 Rate set to 48 Mbs with iwconfig Transmit rate: 17.6 17.6 17.6 17.7 17.3 Mbits/sec, Max: 17.7, Min: 17.3, Average: 17.6, Sigma: 0.1 Receive rate: 18.3 18.2 18.2 18.3 18.4 Mbits/sec, Max: 18.4, Min: 18.2, Average: 18.3, Sigma: 0.1 At this point now I'd feel pretty comfortable getting rid of the ndiswrapper stuff completely now. Thanks for your excellent work on this everybody :) -Aaron _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
