4
Can anyone point to a program similar to iperf
, which avoids biasing of the connection bandwidth measurement due to connection compression enabled?
It seems that iperf
measures the connection spedd by sending some zero data across the connection. When measuring the connection with enabled compression (like openvp
tunnel) such data that is sent is compressed effectively, and data transfer measurement is not accurate.
Please advise the program (or way to use iperf
) so that the compression is negligible (like in case of sending the /dev/urandom
or /dev/random
prepared chunks).
... nice! I just tried
iperf -c iperf-server -F /dev/urandom
which seems to work as well – moritz – 2016-08-04T14:16:02.977... but using the device directly seems a bad idea: its very slow on my system, slower than the link speed. – moritz – 2016-08-04T14:19:30.493
@moritz you're basically measuring the speed of
urandom
device instead of the link speed – mbaitoff – 2016-08-12T09:33:04.167