For each pixel in 999950884 do nothing and retrieve values from an array:
examples.benchmarks.PlainForLoop@82ba41
# time = 9.61159823
198491294
examples.benchmarks.OneRunningPixel@130c19b
# time = 21.82747477
198491294
examples.benchmarks.OneBillionPixels@11b86e7
198491294
# time = 38.530357481
examples.benchmarks.OneBillionFinalPixels@9cab16
198491294
# time = 38.995708953
[Accumulated GC generation 0 time 5.5086843 secs, 91816 GC's, avg GC time 0.0000600]
[Accumulated GC generation 1 time 0.0000000 secs, 0 GC's, avg GC time -1.#IND000]