apply_reduce.clj

foo.core=> (def few-numbers (range 2))
#'foo.core/few-numbers
foo.core=> few-numbers
(0 1)
foo.core=> (def many-numbers (range 100))
#'foo.core/many-numbers
foo.core=> many-numbers
(0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99)
foo.core=> (bench (apply + few-numbers))
Evaluation count : 543551760 in 60 samples of 9059196 calls.
             Execution time mean : 106.193023 ns
    Execution time std-deviation : 6.297424 ns
   Execution time lower quantile : 101.741652 ns ( 2.5%)
   Execution time upper quantile : 121.860399 ns (97.5%)
                   Overhead used : 8.870254 ns

Found 5 outliers in 60 samples (8.3333 %)
	low-severe	 2 (3.3333 %)
	low-mild	 3 (5.0000 %)
 Variance from outliers : 43.5005 % Variance is moderately inflated by outliers
nil
foo.core=> (bench (reduce + few-numbers))
Evaluation count : 1113737880 in 60 samples of 18562298 calls.
             Execution time mean : 46.252559 ns
    Execution time std-deviation : 1.521999 ns
   Execution time lower quantile : 44.958514 ns ( 2.5%)
   Execution time upper quantile : 50.834336 ns (97.5%)
                   Overhead used : 8.870254 ns

Found 4 outliers in 60 samples (6.6667 %)
	low-severe	 2 (3.3333 %)
	low-mild	 2 (3.3333 %)
 Variance from outliers : 19.0380 % Variance is moderately inflated by outliers
nil
foo.core=> (bench (apply + many-numbers))
Evaluation count : 21692220 in 60 samples of 361537 calls.
             Execution time mean : 2.752044 µs
    Execution time std-deviation : 23.815814 ns
   Execution time lower quantile : 2.710895 µs ( 2.5%)
   Execution time upper quantile : 2.798720 µs (97.5%)
                   Overhead used : 8.870254 ns

Found 1 outliers in 60 samples (1.6667 %)
	low-severe	 1 (1.6667 %)
 Variance from outliers : 1.6389 % Variance is slightly inflated by outliers
nil
foo.core=> (bench (reduce + many-numbers))
Evaluation count : 23690400 in 60 samples of 394840 calls.
             Execution time mean : 2.538549 µs
    Execution time std-deviation : 19.818034 ns
   Execution time lower quantile : 2.512037 µs ( 2.5%)
   Execution time upper quantile : 2.587918 µs (97.5%)
                   Overhead used : 8.870254 ns

Found 3 outliers in 60 samples (5.0000 %)
	low-severe	 3 (5.0000 %)
 Variance from outliers : 1.6389 % Variance is slightly inflated by outliers
nil