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jkorell / iperf

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performance issues #55

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 

The reported single flow throughput of iperf3 is considerably lower than nuttcp 
and netperf on 10G and 40G hosts.
This is particularly true for UDP

Original issue reported on code.google.com by bltier...@es.net on 13 Dec 2012 at 5:58

GoogleCodeExporter commented 9 years ago 
The new --zerocopy option improves performance a lot. We still want 
improvements in the non-zerocopy case.

Original comment by jef.posk...@gmail.com on 12 Mar 2013 at 8:48

GoogleCodeExporter commented 9 years ago 
Performance now better, but pushing to next release to see if we can make 
better still in the future.

Original comment by bltier...@es.net on 23 Jul 2013 at 5:34

GoogleCodeExporter commented 9 years ago 
Performance now better still, but there's always room for more.  How about we 
keep this issue open indefinately and use it to record ideas for further 
improvement.

For example, in the most recent round of speedups, I think I might have brought 
back some gettimeofday() syscalls that I had previously eliminated. Re-removing 
those might help.

Anyway, suggest we change the milestone from 3.1a1 to future.

Original comment by jef.posk...@gmail.com on 10 Dec 2013 at 12:35