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Updating 'known issues' for Linux TCP buffer size oddness

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Brian Tierney 2014-03-06 17:03:19 -08:00
parent 2be606a503
commit 7f6c44f325
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README.md
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@ -138,3 +138,8 @@ try "-l 4K".
* On OpenBSD, the server seems to require a "-4" argument, implying
that it can only be used with IPv4.
* When specifying the TCP buffer size using the "-w" flag on Linux, Linux
doubles the value you pass in. (You can see this using iperf3's debug flag).
But then the CWND does not actually ramp up to the doubled value, but only
to about 75% of the doubled value. This appears to be by design.