[tor-bugs] #2104 [Tor Relay]: Turn on sub-second rate limiting granularity

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#2104: Turn on sub-second rate limiting granularity
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 Reporter:  arma         |       Owner:  nickm             
     Type:  enhancement  |      Status:  new               
 Priority:  normal       |   Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay    |     Version:                    
 Keywords:               |      Parent:                    
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Changes (by nickm):

  * milestone:  => Tor: 0.2.3.x-final


Comment:

 > If so, we should talk about what parameters are good to use.

 So right now, TOR_LIBEVENT_TICKS_PER_SECOND is 3.  If we make that too
 high, then refilling and trickling out data can conceivably eat too much
 CPU.  If we make it too low, then we get spiky traffic.  I think something
 between 2 and 10 is probably right.  How can we tell what the right answer
 is?

 One possible idea is to try different values on a busy rate-limited Tor
 server.  To see if we've got it too high, look for bad performance.  To
 see if we've got it too low, look for ... whatever bad spiky traffic
 behavior we're used to disliking.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2104#comment:2>
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