Re: Tor client performance (was Re: URGENT: patch needed ASAP for authority bug)

[Hans Schnehl <torvallenator@xxxxxxxxx>]

On Wed, Apr 21, 2010 at 04:17:18PM +0200, Sebastian Hahn wrote:
> 
> On Apr 21, 2010, at 3:13 PM, Olaf Selke wrote:
> > output from the first 20 minutes after startup can be found here:
> > http://selke.de/txt/notices.html
> >
> > Flight level after 20 min tor uptime is 30k+ tcp connections.
> 
> Interesting. This matches what I see on fluxe3 (although on a
> much larger scale, of course), in that around 10% of
> connections seem to not have a circuit attached.

If there is an interest in the output of vallenator's begindir log 
let me know and please supply a place where I may send it to for to be 
set up in public. (I'll send a 4 hour log to Roger later anyway).

Right now it's running about 1 hour, 19+++ connections, about the same 
ratio as Olafs'.

Hans





> 
> I think we should explore doing three things:
> a) Make clients close connections immediately when they
> close a circuit
> b) Make relays close those connections the client hasn't (yet)
> closed
> c) Make clients close circuits used for begin-dir stuff a lot
> sooner than after the 10 minutes timeout that exists now.
> I don't think the chance to possibly cannibalize the circ later
> justifies the load this is causing.
> 
> Sebastian
>