[openib-general] perftest updated

[Michael S. Tsirkin]

Hi!
I have made some further cleanups:
- summary format cleaned up somewhat, for better usability
  and so I can grep for the values I want more easily
- report options now isolated in a structure of their own
  thats the way I plan to go down with other variables
- report now done in the report function, unifying mhz/cycles format

-- 
MST - Michael S. Tsirkin