Re: Less OT: Here's a Solaris crypto acceleration branch to try.

[John Case <case@xxxxxxxxxxxxxxxx>]

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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