[Haskell-cafe] Counting beta reductions for a Haskell program...

Ryan Ingram ryani.spam at gmail.com
Sat Nov 22 00:06:55 EST 2008

This doesn't make a whole lot of sense.  One of the reasons
GHC-compiled code is so fast is that it turns into straight-line code
whenever possible, via inlining, primitive optimizations, etc.

I suppose there could be an option for the STG machine[1] to increment
a counter on every "Enter", which loosely corresponds to a beta
reduction, but the STG machine is only an island in the sea of
compiled code GHC creates.

  - ryan

[1] http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

On Fri, Nov 21, 2008 at 8:46 PM, kk08 <kdamodar2000 at gmail.com> wrote:
> Does GHC supports/has a command for counting total beta reductions taken by a
> program?
> Thanks.
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