Careful using FTP as, particularly on fast links, you may find yourself measuring disk IO instead.
For downstream TCP measurements, wget -O /dev/null http://blah is a good way of preventing the disk becoming a bottleneck (at least on the receiving side). On 13.11.2013 06:53, Bret Clark wrote: > I've used it on a PI and found it to be very accurate. Next to > Iperf, put/get files from an FTP server provides good throughput > measurements. > > On 11/12/2013 02:49 PM, Clay Stewart wrote: > >> Is it accurate using it on a Raspberry-pi? I was loading up my first >> one today to try out Iperf. Since someone on this thread mentioned >> 'CPU', I was wondering if that would be an issue on a PI? Clocked at >> 800Mhz.. >> >> On Tue, Nov 12, 2013 at 2:35 PM, Mike Hammett >> <wispawirel...@ics-il.net> wrote: >> >>> iPerf is very accurate in what it tells you. What you draw from >>> those conclusions may or may not be accurate. >>> >>> ----- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com [1] >>> >>> ------------------------- >>> >>> FROM: "Sam" <w...@csilogan.com> >>> TO: wireless@wispa.org >>> SENT: Tuesday, November 12, 2013 12:50:51 PM >>> SUBJECT: [WISPA] iPerf as a Real-World Performance Simulation Tool >>> >>> Has anyone used iPerf before? I'm curious of your thoughts as to >>> the >>> reliability, and how the results would map to a real-world >>> environment. >>> For example, a friend was testing some 3.65 radios (which had no >>> connection to the Internet) using iPerf. Based upon the iPerf >>> results, a >>> determination was made regarding maximum concurrent users per AP >>> and >>> maximum aggregate bandwidth capacity of the radio. For the maximum >>> concurrent users I believe they tested this at several different >>> download and upload speed for the fictional users. >>> >>> Having never used iPerf, I don't know if the results from their >>> tests >>> (which were very poor by the way - much lower than common >>> configurations >>> of DL/UL rates as well as number of users per AP I've read many of >>> you >>> describing on these lists) map reasonably to what one would expect >>> from >>> a given AP, or if they tend to be wonky. >>> >>> Thanks, >>> Sam >>> _______________________________________________ >>> Wireless mailing list >>> Wireless@wispa.org >>> http://lists.wispa.org/mailman/listinfo/wireless [2] >>> >>> _______________________________________________ >>> Wireless mailing list >>> Wireless@wispa.org >>> http://lists.wispa.org/mailman/listinfo/wireless [2] >> >> -- >> >> -- >> SCS >> Clay Stewart >> CEO, Tye River Farms, Inc., >> DBA Stewart Computer Services >> 434.263.6363 O >> 434.942.6510 C >> cstew...@stewartcomputerservices.com >> “We Keep You Up and Running” >> Wireless Broadband >> Programming >> Network Services > > > > Links: > ------ > [1] http://www.ics-il.com > [2] http://lists.wispa.org/mailman/listinfo/wireless > > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
