77 lines
2.6 KiB
Plaintext
77 lines
2.6 KiB
Plaintext
= Summary =
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iperf3 is a tool for measuring achievable bandwidth on IP networks.
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iperf3 is NOT backwards compatible with the original iperf.
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Supported platforms:
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* Linux
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* FreeBSD
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* Mac OSX
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= Building iperf3 =
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== Prerequisites: ==
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* libuuid: this is not installed by default for Debian/Ubuntu Systems
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to install: apt-get install uuid-dev
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== Building ==
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./configure; make; make install
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== Latest version ==
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To check out the most recent code, do: hg clone http://code.google.com/p/iperf/
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== Bug Reports ==
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Before submitting a bug report, try checking out the latest version of the code, and confirm that its not
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already fixed. Then submit to: https://code.google.com/p/iperf/issues/list
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For more information see: http://code.google.com/p/iperf/
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== Changes from iperf 2.x ==
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New options:
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-V, --verbose more detailed output than before
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-J, --json output in JSON format
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-Z, --zerocopy use a 'zero copy' sendfile() method of sending data
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-O, --omit N omit the first n seconds (to ignore slowstart)
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-T, --title str prefix every output line with this string
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-F, --file name xmit/recv the specified file
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-A, --affinity n/n,m set CPU affinity
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Depricated options:
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Plan to add for the next release:
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-D, --daemon run the server as a daemon
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Not planning to support. If you really miss these options, please submit a request in the issue tracker
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-d, --dualtest Do a bidirectional test simultaneously
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-r, --tradeoff Do a bidirectional test individually
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-N, --nodelay set TCP no delay, disabling Nagle's Algorithm
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-T, --ttl time-to-live, for multicast (default 1)
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-Z, --linux-congestion <algo> set TCP congestion control algorithm (Linux only)
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-x, --reportexclude [CDMSV] exclude C(connection) D(data) M(multicast) S(settings) V(server) reports
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-y, --reportstyle C report as a Comma-Separated Values
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Also deprecated is the ability to set the options via environment variables.
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For sample command line usage, see:
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http://fasterdata.es.net/performance-testing/network-troubleshooting-tools/iperf-and-iperf3/
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Using the default options, iperf is meant to show typical well designed application performance.
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'Typical well designed application' means avoiding artificial enhancements that work only for testing
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(such as splice()'ing the data to /dev/null). iperf does also have flags for 'extreme best case'
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optimizations but they must be explicitly activated.
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These flags include:
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-Z, --zerocopy use a 'zero copy' sendfile() method of sending data
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-A, --affinity n/n,m set CPU affinity
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