=== format_scaling.py ===
8 files x 300s

target  threads    wall      cpu  cores used
  AIFF        1    1.63     6.31       3.86x
  AIFF        4    1.18    10.58       8.94x
   WAV        1    1.62     6.17       3.81x
   WAV        4    1.19    10.68       8.99x
  FLAC        1    3.23     7.06       2.18x
  FLAC        4    1.38    12.35       8.96x
   MP3        1   15.05    19.01       1.26x
   MP3        4    3.83    21.86       5.71x

=== write_cost.py ===
     write AIFF  threads=1   1.65s
     write AIFF  threads=4   1.17s
 discard output  threads=1   1.63s
 discard output  threads=4   1.18s

bytes written by the first pair: 423 MB

=== shipped_path_scaling.py ===
8 files x 300s, through _encode_one

target  threads    wall   speedup
  AIFF        1    2.27     1.00x
  AIFF        4    1.41     1.61x
   MP3        1   15.86     1.00x
   MP3        4    4.07     3.90x

