5970 slow?

[uzomoshi]

I dont get what the problem is here. The numbers shown are the ones to expect.

Hi Atom! There's no problem really other than my misunderstanding. If you want to be picky, the problem may be information available about what to expect from specific algorithms. Reading available documentation and the forum extensively I couldn't figure out:

• public benchmarks are almost always lite, plus ones are single hash anyway. Thus, best speeds reachable.
  
• multiple hashes in plus incur in a tangible penalty. I did some tests for sha1: 2 hashes (~ 10%), 200k hashes (~ 20%), 500k hashes (~ 30%), 1M hashes (~ 40%).
  
• salt + pass also incur in a tangible penalty. Looks ~ 7% for 200k hashes.
  

So being a newbie, I expected public benchmark performance and got ~ 25-30% less instead.

Just curious, why is salt + pass significantly slower than pass + salt ?
Could it be done faster for single salt situations?

Thank you!