[Bloat] SO_SNDBUF and SO_RCVBUF

[Steinar H. Gunderson]

On Wed, Apr 22, 2015 at 02:02:32PM -0700, Eric Dumazet wrote:
> Yeah, the real nice thing is TCP_NOTSENT_LOWAT added in linux-3.12

But this is only for when your data could change underway, right? 
Like, not relevant for sending one big file, but might be relevant for e.g.
VNC (or someone mentioned the usecase of HTTP/2, where a high-priority
request might come in, which you don't want buried behind a megabyte of
stuff in the send queue).

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