darcs patch: Teach the inliner about primitive compar... (and2more)

[Simon Peyton-Jones]

| > valgrind to profile execuction at a lower level http://valgrind.org.
| > Something like this
| >
| >         valgrind --tool=cachegrind <prog> <args>
| >         [ creates a file like cachegrind.out.23915]
| >         cg_annotate --23915
| >         [ use the correct number, of course ]
| 
| Does that help track down allocation? If so, how?

It tells you where the program counter spends its time.  Then you
eye-ball the corresponding Core or STG code to see where the allocation
is.   It's not difficult in practice, once you get in the swing of it.

Simon