[Haskell-cafe] Can't get any memory profile data

[Cody Goodman]

Here is the command line log of my attempt following real world haskell's
memory profiling example:

src λ stack exec -- ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.10.3
src λ cat Main.hs
module Main where

main :: IO ()
main = do
  let x = {-# SCC sum #-}sum [1..500]
  print x
  {-# SCC helloworld #-} putStrLn "hello world"
src λ stack exec -- ghc -O2 --make Main.hs -prof -auto-all -caf-all
-fforce-recomp
[1 of 1] Compiling Main             ( Main.hs, Main.o )
Linking Main ...
src λ ./Main +RTS -hc -p
125250
hello world
src λ cat Main.hp
JOB "Main +RTS -hc -p"
DATE "Fri Mar 11 22:51 2016"
SAMPLE_UNIT "seconds"
VALUE_UNIT "bytes"
BEGIN_SAMPLE 0.00
END_SAMPLE 0.00
BEGIN_SAMPLE 0.00
END_SAMPLE 0.00
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