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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

Windows iperf3: Difference between revisions

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By default, this will run a single-thread upload speedtest (sending traffic TO the speed test server).
By default, this will run a single-thread upload speedtest (sending traffic TO the speed test server). As you can see in the screenshot, the upload speed this line happens to get is just over 19Mb/s.


===Variations===
===Variations===
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There are variations you can do to test the speed as follows:
There are variations you can do to test the speed as follows:


* Run a single-thread Download test: <SyntaxHighlight inline>iperf3.exe -R -P1 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a '''single-thread Download''' test: <SyntaxHighlight inline>iperf3.exe -R -P1 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a single-thread Upload test: <SyntaxHighlight inline>iperf3.exe -P1 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a '''single-thread Upload''' test: <SyntaxHighlight inline>iperf3.exe -P1 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a 10-thread Download test: <SyntaxHighlight inline>iperf3.exe -R -P10 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a '''10-thread Download''' test: <SyntaxHighlight inline>iperf3.exe -R -P10 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a 10-thread Upload test: <SyntaxHighlight inline>iperf3.exe -P10 -c speedtest.aa.net.uk</SyntaxHighlight>
* Run a '''10-thread Upload''' test: <SyntaxHighlight inline>iperf3.exe -P10 -c speedtest.aa.net.uk</SyntaxHighlight>

===What to look for:===
* The results should be near to the speed you'd expect for your line.
* You may want to run the tests at different times of day so as to see if there is any peak-time congestio0n affecting you.
* Hopefully the single and multi-thread tests give similar results - if not, there may be some sort of problem.