Hi All,
We've just released iperf 2.0.11 tested across all supported platforms.
Here are the significant changes:
2.0.11 change set (as of May 24th, 2018)
o support for -b on server (read rate limiting)
o support for --isochronous traffic with optional frames per second, mean
and variance uses a log normal distribution (requires configure
w/-enable-isochronous and compile)
o support for --udp triggers (requires configure w/ --enable-udptriggers,
early code with very limited support)
o support for --udp-histogram with optional bin width and number of bins
(default is 1 millisecond bin width and 1000 bins)
o support for frame (burst) latency histograms when --isochronous is set
o support for --tx-sync with -P for synchonrized writes. Initial use is
for WiFi OFDMA latency testing.
o support for --incr-dstip with -P for simultaneous flows to multiple
destinations (use case is for OFDMA)
o support for --vary-load with optional weight, uses log normal
distribution (requires -b to set the mean)
o support for --l2checks to detect L2 length errors not detected by v4 or
v6 payload length errors (requires linux, berkeley packet filters BPFs and
AF_PACKET socket support)
o support for server joining mulitcast source specific multicast (S,G) and
(*,G) for both v4 and v6 on platforms that support it
o improved write counters (requires -e)
o accounting bug fix on client when write fails, this bug was introduced in
2.0.10
o slight restructure client/server traffic thread code for maintainability
o python: flow example script updates
o python: ssh node object using asyncio
o python: histograms in flows with plotting (assumed gnuplot available)
o python: hierarchical clustering of latency histograms (early code)
o man pages updates
o Note: latency histograms require client and server system clock
synchronization. A GPS disciplined oscillator using Precision Time
Protocol works well for this.
A 2.0.11 zipped binary for windows will be uploaded soon. (We're
investigating cross compiling using MXE http://mxe.cc/#introduction to
simplify the release process)
Bob
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