Benchmark: timing 100 iterations of Baseline, Integers, LR_1, LR_2, Queue, blokhead...
  Baseline: 0.554613 wallclock secs ( 0.54 usr +  0.01 sys =  0.55 CPU) @ 181.82/s (n=100)
            (warning: too few iterations for a reliable count)
  Integers: 32.3786 wallclock secs (32.37 usr +  0.00 sys = 32.37 CPU) @  3.09/s (n=100)
      LR_1: 18.7755 wallclock secs (18.77 usr +  0.00 sys = 18.77 CPU) @  5.33/s (n=100)
      LR_2: 69.7311 wallclock secs (69.73 usr +  0.00 sys = 69.73 CPU) @  1.43/s (n=100)
     Queue: 2.55908 wallclock secs ( 2.55 usr +  0.00 sys =  2.55 CPU) @ 39.22/s (n=100)
  blokhead: 95.6313 wallclock secs (95.62 usr +  0.01 sys = 95.63 CPU) @  1.05/s (n=100)
           Rate blokhead     LR_2 Integers     LR_1    Queue Baseline
blokhead 1.05/s       --     -27%     -66%     -80%     -97%     -99%
LR_2     1.43/s      37%       --     -54%     -73%     -96%     -99%
Integers 3.09/s     195%     115%       --     -42%     -92%     -98%
LR_1     5.33/s     409%     271%      72%       --     -86%     -97%
Queue    39.2/s    3650%    2635%    1169%     636%       --     -78%
Baseline  182/s   17287%   12578%    5785%    3313%     364%       --