Provide "meta" statistics

[PragTob]

For different use cases, like bencheeorg/benchee_html#10 it'd be great to have statistics about statistics - what I'd call "meta statistics" - although there's probably some better real statistics name for this :)

What should be in there (that I know of so far):

• job size (how many jobs are in there)
• minimum of run times over all jobs
• maximum of run times over all jobs

This should be added as a new key to the benchmarking suite (:meta_statistics) - it could be added within the statistics module but might be better off as a separate MetaStatistics step that is computed after general statistics have been computed.

[elpikel]

Can i take this one?

[PragTob]

Hmm probably :) I fell like I might need to clarify some things before that, also because they are not completely clear in my head (as in, some of them should be scoped by input I believe). Will get back to that later, please ping me if I don't :)

[elpikel]

Is there anything else that i can help you with?

[PragTob]

@elpikel lots of stuff :D I don't have the mind to fully refine this one atm but here's a couple that I think are good points:

• Implement Memory unit (Scale & Format) #121 (just created) - it's basically the "full" implementation of your PR before, it doesn't change any behaviour just feels "nicer"
• Make unit_scaling a top level configuration option #58 is some simple-ish change I've been longing for
• Provide statistics for drawing box plot diagrams #57 gets some nice new statistics but requires some knowledge about box plot diagrams which isn't always easist
• Define a behaviour for formatters #53 is something I wished for for a long time and that'd also give you a chance to play with the formatters if you wish :)
• Provide nth percentile statistics #48 in its basic form (95th percentile) is very easy to do, and a bit a very simple version of Provide statistics for drawing box plot diagrams #57
• Add configuration options to override Benchee default values #45 would also be very nice to have and shouldn't be too hard
• Add option for displaying long labels for scaled units #28 is also a nice option, although it might lead to formatting problems

[elpikel]

Great, I will pick one issue form this list then. Thanks!