[WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Sam
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

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Matt Hoppes
If you run TCP from a machine that has enough CPU they are very accurate. On Nov 12, 2013, at 13:50, Sam w...@csilogan.com wrote: 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

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Mike Hammett
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 - Original Message - From: Sam w...@csilogan.com To: wireless@wispa.org Sent: Tuesday,

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Timothy D. McNabb
Use jperf for simplicity sake ☺ -Tim From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mike Hammett Sent: Tuesday, November 12, 2013 11:35 AM To: WISPA General List Subject: Re: [WISPA] iPerf as a Real-World Performance Simulation Tool iPerf is very accurate in

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Clay Stewart
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.netwrote:

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Bret Clark
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

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Bob Moldashel
We have seen download/upload irregularities when using it with different types of laptops/processors. Overall it is a good tool. Something to check first is to test laptop to laptop with a cossover cable and see what your results are first. Nothing like chasing a problem that isn't there.

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Josh Luthman
Don't use cheap chipsets on the laptop. Who shipped the laptops you had problems with? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Nov 12, 2013 9:09 PM, Bob Moldashel lakel...@gbcx.net wrote: We have seen download/upload irregularities when

Re: [WISPA] iPerf as a Real-World Performance Simulation Tool

2013-11-12 Thread Andrew Jones
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