iperf (2.0.5) vs iperf3 on 10G Ethernet
Closed this issue · 2 comments
GoogleCodeExporter commented
What steps will reproduce the problem?
1. On a 10 G link,
a) iperf -c <IP> -P <num of cores>
b) iperf3 -c <IP> -P <num of cores>
What is the expected output? What do you see instead?
a) iperf 2.0.5 saturates the link and give o/p of 9.5 - 9.9 Gbps
b) iperf3 fails to saturate the network. Best figure ranges in 6.5 to 7 Gbps
What version of the product are you using? On what operating system?
iperf version 2.0.5 (08 Jul 2010) pthreads
iperf version 3.0-BETA5 (28 March 2013)
uname -a o/p
Linux **** 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6 19:48:22 GMT 2011 x86_64
x86_64 x86_64 GNU/Linux
Please provide any additional information below.
Test setup: Two machines, each with 16 cores and 64 GB RAM with above kernel
are connected back to back.
Original issue reported on code.google.com by DhruvDes...@gmail.com on 6 Dec 2013 at 10:40
GoogleCodeExporter commented
already done
Original comment by bltier...@es.net on 6 Dec 2013 at 2:08
- Changed state: WontFix
GoogleCodeExporter commented
We tried with the latest version of iperf3, but still the problem persists.
iperf3 is not saturating 10G, while iperf v 2.0.5 can
Original comment by DhruvDes...@gmail.com on 11 Dec 2013 at 9:11