The SPEC CPU 2006 estimate comment is a legal requirement for any public results that cannot be guaranteed to be repeatable (which will never be the case in a v

The SPEC CPU 2006 estimate comment is a legal requirement for any public results that cannot be guaranteed to be repeatable (which will never be the case in a virtualized, multi-tenant cloud environment). The results provided are based on the mean from multiple iterations on multiple instances from each service. If you were to run it on these same instances your results should be similar. The post also provides standard deviation analysis for all SPEC CPU runs on a given instance type to demonstrate the type of results variability you might expect.