Benchmark: timing 100000 iterations of Baseline, Integers, LR_1, LR_2, Queue, blokhead...
  Baseline: 1.62766 wallclock secs ( 1.63 usr +  0.00 sys =  1.63 CPU) @ 61349.69/s (n=100000)
  Integers: 7.29155 wallclock secs ( 7.28 usr +  0.01 sys =  7.29 CPU) @ 13717.42/s (n=100000)
      LR_1: 7.017 wallclock secs ( 7.02 usr +  0.00 sys =  7.02 CPU) @ 14245.01/s (n=100000)
      LR_2: 7.79621 wallclock secs ( 7.80 usr +  0.00 sys =  7.80 CPU) @ 12820.51/s (n=100000)
     Queue: 3.60201 wallclock secs ( 3.60 usr +  0.00 sys =  3.60 CPU) @ 27777.78/s (n=100000)
  blokhead: 9.88667 wallclock secs ( 9.89 usr +  0.00 sys =  9.89 CPU) @ 10111.22/s (n=100000)
            Rate blokhead     LR_2 Integers     LR_1    Queue Baseline
blokhead 10111/s       --     -21%     -26%     -29%     -64%     -84%
LR_2     12821/s      27%       --      -7%     -10%     -54%     -79%
Integers 13717/s      36%       7%       --      -4%     -51%     -78%
LR_1     14245/s      41%      11%       4%       --     -49%     -77%
Queue    27778/s     175%     117%     103%      95%       --     -55%
Baseline 61350/s     507%     379%     347%     331%     121%       --