Bruce Mah at es net is my main iperf 3 contact. Not sure what you mean by "I hope they don't set a fixed size buffer"
FYI, the current git head of iperf 2.0.14 hasn't undergone any windows testing yet. Not sure if it even compiles. The 2.0.13 tarball is the latest official release. We're getting closer to a 2.0.14 release - feel free to request features. https://youtu.be/pfzwrcTDc38 Bob On Tue, Feb 4, 2020 at 2:28 PM Daniel Havey <dha...@gmail.com> wrote: > Okay cool. I hope they didn't set a fixed buffer size. I will download > iperf2 and try it out. I'll let you know how if there are any issues. > BTW: Do you know who is responsible for iperf3? That's the tool that I > have been getting limited bandwidth reports on. > > On Tue, Feb 4, 2020 at 2:23 PM Bob McMahon <bob.mcma...@broadcom.com> > wrote: > >> I just checked with our windows engineer and he said the iperf 2 >> <https://sourceforge.net/projects/iperf2/>team no longer uses cygwin but >> rather builds a native version. >> >> Bob >> >> On Tue, Feb 4, 2020 at 2:07 PM Daniel Havey <dha...@gmail.com> wrote: >> >>> Hi, I'm Daniel Havey from Microsoft Windows. I'm the PM for transports >>> (TCP/QUIC) and there is a bug in the cygwin1.dll that was distributed with >>> the iperf binaries. The bug limits maximum bandwidth achievable by the >>> iperf tool. Details can be found in my blogpost: >>> https://techcommunity.microsoft.com/t5/networking-blog/windows-network-performance-suffering-from-bad-buffering/ba-p/339668 >>> >>> We worked with RedHat on Cygwin to fix the bug, but I am still getting >>> reports of limited bandwidth from windows iperf users. The fix is simple. >>> Just download the new cygwin1.dll from the cygwin website and the problem >>> will be fixed. >>> >>> thanks ;) >>> ...Daniel >>> _______________________________________________ >>> Iperf-users mailing list >>> Iperf-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/iperf-users >>> >>
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