On Wed, 14 Oct 2009, Olaf Selke wrote:
according Phobos' posting from February this year Tor doesn't spend as
much time within AES crypto as commonly expected. Pls look here:
http://interloper.org/tmp/tor/2009-02-27-tor-callgrind-0.png
An Intel C2D E8600 cpu for about 200 Euro bucks can handle at least 100
MBit/s tor traffic in software.
Thanks for passing this along.
What load does a typical "modern" CPU like that have while running 100
mbps ?
Further, when this analysis was done, how much of that traffic was
established traffic and how much of it was the brokering of new
connections ? It is my understanding that running established connections
at a high rate is indeed trivial, but running a high rate of constant new
connections (lots of asymmetric work there) is where the difficulty
lies...
Comments ?
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