[Bug 227303] TCP: huge cwnd does not slowly decay while app/rwnd limited, interacts badly with rwnd autosize

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Thu Oct 18 16:44:58 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227303

--- Comment #5 from Richard Scheffenegger <srichard at netapp.com> ---
(In reply to Hiren Panchasara from comment #4)
Hi Hiren,

just found that Lars submitted a Patch incuding NewCWV some time ago:

https://lists.freebsd.org/pipermail/freebsd-net/2014-February/037771.html

The first patch is about PRR (the core mechanism looks good; cache line
alignment of the added variables might need some review. The simplistic way to
calculate the delta bytes of the scoreboard  by scanning the entire scoreboard
twice can probably be made more efficient by proper accounting during the
scoreboard updates.

The second patch is about this bug report; 


Best regards,
   Richard

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