RE: ipsec null encryption slower than AES / was Re: 2.6 IPSec Throughput puzzle

["Shekhar Kshirsagar" <shekhark@xxxxxxxxxxx>]

> From your numbers below it is clear all ipsec benchmarks have maxed out your
> CPU, but aes/sha1 still has some hits in default_idle. Is this an SMP
> system?
No, it is not running SMP kernel. (The system is SMP). 
About little time being sent in default_idle, I think,it was because I was 
little late in 
performing dump. I redid the test and the CPU was maxed out even in aes/sha1 
case.
 
> http://www.certconf.org/presentations/2004/Tuesday/TS2.pdf - the concept is
> called 'the scatterlist'.
> http://lwn.net/Articles/14010/?format=printable is also nice.
Thanks, for the pointers. I will see, if I can isolate the problem. 

Shekhar