Hi,
(renamed the topic to reflect what it's about)
On 27/03/18 01:09, fragmentux wrote:
I am not convinced 'iperf -r' is reliable (bold claim maybe .. )
iperf3 have dropped -r in favour of -R "reverse mode"
server sends and client receives. but not both on the same run ..
After numerous hangs and some bazaar results with iperf2
i opted to upgrade to iperf3 .. still some slightly odd results
but no hangs so far ..
I've measured it with 'iperf -s' on Win7 and get the same results.
Important difference: with the Cygwin version of iperf I get a 240 Mbps
/ 50 Mbps
With the Win32 version (v2.0.8) i get 330 / 100 Mbps (plus or minus 5 %)
The asymmetry is caused by the hardware used - if I use two Linux
servers I also see asymmetry, as I am pushing the CPU of one of the
Linux boxen a bit. The difference of my laptop running Linux vs running
Win 7 is quite huge, however: on Linux I am getting well above 600 Mbps
both ways.
cheers,
JJK
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