tor/changes/bug2756

  o Minor bugfixes (spec conformance, performance):
    - We now ask the other side of a stream (the client or the exit)
      for more data on that stream when the amount of queued data on
      that stream dips low enough.  Previously, we wouldn't ask the
      other side for more data until either it sent us more data
      (which it wasn't supposed to do if it had exhausted its
      window!) or until we had completely flushed all our queued
      data.  Fixing this should improve throughput.  Fixes bug 2756;
      bugfix on the earliest released versions of Tor (svn commit
      r152).
Consider sending stream-level SENDME cells on partial flushes. Right now, we only consider sending stream-level SENDME cells when we have completely flushed a connection_edge's outbuf, or when it sends us a DATA cell. Neither of these is ideal for throughput. This patch changes the behavior so we now call connection_edge_consider_sending_sendme when we flush _some_ data from an edge outbuf. Fix for bug 2756; bugfix on svn r152. 2011-03-14 22:48:45 +01:00			`o Minor bugfixes (spec conformance, performance):`
			`- We now ask the other side of a stream (the client or the exit)`
			`for more data on that stream when the amount of queued data on`
			`that stream dips low enough. Previously, we wouldn't ask the`
			`other side for more data until either it sent us more data`
			`(which it wasn't supposed to do if it had exhausted its`
			`window!) or until we had completely flushed all our queued`
			`data. Fixing this should improve throughput. Fixes bug 2756;`
			`bugfix on the earliest released versions of Tor (svn commit`
			`r152).`