How do I check the optimisation level of the built-in splitAt? Is something other than -O2 giving me my speed increase?

[Richard Kelsall]

Bulat Ziganshin wrote:
> Hello Simon,
> 
>> It's hard to tell what optimisation level your libraries were compiled
>> with.  The default setting is -O, but when building binary distributions we
>> usually set it explicitly to -O2.  If you got your binary from another
>> source, they might have only used -O.
> 
> not surprising that noone answered this question in cafe :)
> 
> actually, main Windows builds goes from Sigbjorn Finne afair. may be
> from Neil too. so we probably need to warn them that their builds may
> be sub-optimal?
> 

Thanks chaps,

For the record I'm using the Windows version of GHC 6.8.2 downloaded
from here

http://haskell.org/ghc/download_ghc_682.html

MD5 is

5356a12f056a32ef35fa44db2e2204fc

I just downloaded the one that's there currently and it's the same as
the one I'm using which I think I downloaded in January.


Richard.