[tor-relays] Number of Connections Open

[Steve Snyder]

Exit server with maxed-out 10Mbit connection (1.1MB/sec):

# lsof -ni | grep _tor | wc -l
546

Relay server rate-limited to 150KB/sec:

# lsof -ni | grep _tor | wc -l
132

Regarding the relay server: torstatus.blutmagie.de reports Observed bandwidth of 51KB/sec while Vidalia reports 172KB/sec.

Neither server is CPU- or memory-constrained, and the relay server is not bandwidth constrained.

With all that said, I don't expect success in your endeavor.  In my experience, traffic on relays is really, really erratic.  Look at how the utilization bounces on a Stable server:

http://torstatus.blutmagie.de/router_detail.php?FP=4d393c7d93c16b97a3f41df94919ca8272239b96

Good luck modeling (and end-users estimating the use of their Internet connections) this kind of variation in network utilization.


-----Original Message-----
From: "Tim Sally" <tsally2 at illinois.edu>
Sent: Saturday, July 30, 2011 3:56pm
To: tor-relays at lists.torproject.org
Subject: [tor-relays] Number of Connections Open

Hi!

I'm working on a model to estimate the number of connections an OR has
open as a function of the OR's bandwidth. I could really use some help
confirming that my model is reasonable. Would any relay operators be
willing to share the results of some variant of netstat | wc -l and
the bandwidth of the relay?

Thanks,

Tim
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