Matt Dillon wrote:
> Also, the algorithm is less helpful when it has to figure out the
> optimal transmit buffer size for every new connection (consider a web
> server). I am considering ripping out the ssthresh junk from the stack,
> which does not work virtually at all, and using the route table's
> ssthresh field to set the initial buffer size for the algorithm.
The "state of the art" for initial window size is flow monitoring
at the next hop router, with feedback to the host system.
A gross approximation is called "fast start". ClickArray has a
patch for this, which could potentially be released back to
FreeBSD; I will check with TPTB... it's a pretty trivial version
of the RFC'ed initial window scaling.
-- Terry
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