[tor-bugs] #3564 [Tor Client]: Implement proposal 181 (optimistic data, client side)

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Mon Jul 18 22:14:24 UTC 2011


#3564: Implement proposal 181 (optimistic data, client side)
-------------------------+--------------------------------------------------
 Reporter:  nickm        |          Owner:                    
     Type:  enhancement  |         Status:  needs_review      
 Priority:  major        |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client   |        Version:                    
 Keywords:               |         Parent:  #1849             
   Points:               |   Actualpoints:                    
-------------------------+--------------------------------------------------

Comment(by iang):

 Replying to [comment:6 nickm]:
 > > You mean smaller than one stream window?
 >
 > I think so, maybe. Does that not seem reasonable to you?

 I guess the ideal number is "the amount of data you can send in one RTT",
 unless you don't care if large uploads stall for a bit (but no worse than
 they do today).

 What you're trading off is the probability the optimism is warranted (the
 stream does open) against the wasted Tor bandwidth otherwise.

 So you can make a conservative choice, picking a limit that will handle
 any reasonable HTTP GET request, for example, or HTTPS ClientHello, etc.,
 but not large POSTs.  ISTR that Google has a public data set of HTTP
 request sizes.  (Or maybe it's HTTP object sizes?)

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3564#comment:7>
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