99 Elm compilation problems

elm-compilation-notes.md

Rebuild all the things (worse case scenario):

[ReallyBigProject](master)$ find client/elm -type f -exec touch {} +
[ReallyBigProject](master)$ elm-make +RTS -N4 -s -RTS client/elm/Main.elm --output $(mktemp --suffix .js)

Here's the output (with some overhead from profiling stuff in the build):

Success! Compiled 178 modules.
Successfully generated /tmp/tmp.0IC3OWwvKJ.js
 236,074,687,328 bytes allocated in the heap
 140,887,847,776 bytes copied during GC
     476,849,904 bytes maximum residency (402 sample(s))
       5,945,608 bytes maximum slop
            1292 MB total memory in use (0 MB lost due to fragmentation)

                                     Tot time (elapsed)  Avg pause  Max pause
  Gen  0     449628 colls, 449628 par   453.719s  113.490s     0.0003s    0.0278s
  Gen  1       402 colls,   401 par   144.609s  24.731s     0.0615s    0.3519s

  Parallel GC work balance: 7.92% (serial 0%, perfect 100%)

  TASKS: 18 (1 bound, 17 peak workers (17 total), using -N8)

  SPARKS: 0 (0 converted, 0 overflowed, 0 dud, 0 GC'd, 0 fizzled)

  INIT    time    0.000s  (  0.003s elapsed)
  MUT     time  218.719s  (166.916s elapsed)
  GC      time  598.328s  (138.221s elapsed)
  RP      time    0.000s  (  0.000s elapsed)
  PROF    time    0.000s  (  0.000s elapsed)
  EXIT    time    0.016s  (  0.096s elapsed)
  Total   time  817.062s  (305.237s elapsed)

  Alloc rate    1,079,352,763 bytes per MUT second

  Productivity  26.8% of total user, 71.7% of total elapsed

gc_alloc_block_sync: 18741417
whitehole_spin: 0
gen[0].sync: 27
gen[1].sync: 8823794