Benchmarks normalized to Scheme48. See also about the benchmarks.
| fastest | Bigloo | Chicken | Gambit | Guile | Ikarus | Larceny | MIT | PLT | Petite | Scheme48 | To plots | |
| conform | 130 ms | 0.01 | 0.05 | 0.02 | 0.51 | 0.02 | 0.02 | 0.02 | 0.08 | 0.25 | 1 | |
| cpstack | 188 ms | - | 0.06 | 0.03 | 0.87 | 0.03 | 0.02 | 0.27 | 0.05 | 0.61 | 1 | |
| ctak | 75 ms | 2.97 | 0.05 | 0.06 | - | 0.05 | 0.10 | 12.14 | 1.61 | 0.09 | 1 | |
| dderiv | 129 ms | 0.08 | 0.37 | 0.03 | 0.66 | 0.03 | 0.04 | 0.05 | 0.10 | 0.15 | 1 | |
| deriv | 111 ms | 0.08 | 0.42 | 0.03 | 0.61 | 0.02 | 0.04 | 0.04 | 0.11 | 0.18 | 1 | |
| destruct | 143 ms | 0.08 | 0.08 | 0.02 | 0.58 | 0.02 | 0.02 | 0.01 | 0.03 | 0.44 | 1 | |
| div | 213 ms | 0.09 | 0.06 | 0.03 | 0.69 | 0.03 | 0.03 | 0.16 | 0.04 | 0.26 | 1 | |
| dynamic | 719 ms | 0.04 | 0.15 | 0.09 | 0.17 | 0.03 | 0.03 | 0.04 | 0.06 | 0.09 | 1 | |
| dynamic2 | 671 ms | 0.04 | 0.08 | 0.09 | 0.18 | 0.03 | 0.03 | 0.04 | 0.04 | 0.09 | 1 | |
| earley | 140 ms | 0.09 | 0.35 | 0.05 | 0.46 | 0.04 | 0.05 | 0.02 | 0.06 | 0.60 | 1 | |
| fft | 1018 ms | 0.13 | 0.12 | 0.05 | 0.64 | 0.06 | 0.07 | 0.08 | 0.07 | 0.41 | 1 | |
| graphs | 260 ms | 0.05 | 0.05 | 0.03 | 0.63 | 0.02 | 0.03 | 0.06 | 0.03 | 0.88 | 1 | |
| kanren | 1141 ms | - | 0.19 | - | 0.95 | 0.07 | 0.13 | - | 0.13 | 0.42 | 1 | |
| lattice | 1000 ms | 0.00 | 0.02 | 0.01 | 0.36 | 0.00 | 0.00 | 0.01 | 0.02 | 0.22 | 1 | |
| lattice2 | 1051 ms | 0.00 | 0.02 | 0.01 | 0.36 | 0.00 | 0.00 | 0.01 | 0.02 | 0.22 | 1 | |
| maze | 250 ms | 0.03 | 0.08 | 0.03 | 0.74 | 0.03 | 0.08 | 0.05 | 0.08 | 0.49 | 1 | |
| maze2 | 241 ms | 0.03 | 0.08 | 0.03 | 0.77 | 0.03 | 0.07 | 0.04 | 0.02 | 0.49 | 1 | |
| mazefun | 356 ms | 0.05 | 0.08 | 0.02 | 0.49 | 0.02 | 0.02 | 0.03 | 0.03 | 0.32 | 1 | |
| nboyer | 1583 ms | 0.06 | 0.21 | 0.07 | 0.62 | 0.04 | 0.04 | 0.03 | 0.07 | 0.35 | 1 | |
| nestedloop | 354 ms | 0.03 | 0.07 | 0.01 | 0.42 | 0.02 | 0.03 | 0.02 | 0.01 | 0.39 | 1 | |
| nfa | 220 ms | 0.01 | - | 0.02 | 1.34 | 0.01 | 0.02 | 0.02 | 0.04 | 0.49 | 1 | |
| nqueens | 211 ms | 0.05 | 0.07 | 0.02 | 0.47 | 0.02 | 0.02 | 0.03 | 0.03 | 0.35 | 1 | |
| nucleic2 | 1325 ms | 0.16 | 0.07 | - | 0.48 | 0.05 | 0.05 | - | 0.05 | 0.25 | 1 | |
| paraffins | 73 ms | 0.23 | 0.57 | 0.05 | 0.67 | 0.05 | 0.09 | 0.03 | 0.09 | 0.40 | 1 | |
| peval | 177 ms | 0.01 | - | 0.02 | 0.77 | 0.02 | 0.03 | 0.12 | 0.06 | 0.40 | 1 | |
| psyntax | 93 ms | 0.02 | 0.16 | - | 0.79 | 0.06 | 0.33 | - | 0.17 | 0.47 | 1 | |
| puzzle | 132 ms | 0.03 | 0.09 | 0.02 | 0.46 | 0.04 | 0.03 | - | 0.03 | 0.40 | 1 | |
| sboyer | 3415 ms | 0.02 | 0.09 | 0.02 | 0.63 | 0.01 | 0.02 | 0.04 | 0.03 | 0.37 | 1 | |
| scheme | 137 ms | 0.03 | 0.06 | 0.04 | 0.50 | 0.02 | 0.02 | 0.04 | 0.07 | 0.27 | 1 | |
| scheme2 | 138 ms | 0.02 | - | 0.04 | 0.50 | 0.02 | 0.02 | 0.04 | 0.05 | 0.27 | 1 | |
| sort1 | 471 ms | 0.07 | 0.15 | 0.12 | 0.72 | 0.03 | - | 0.10 | 0.07 | 0.40 | 1 | |
| tak | 110 ms | 0.01 | 0.10 | 0.02 | 0.63 | 0.02 | 0.03 | 0.03 | 0.04 | 0.32 | 1 | |
| takl | 150 ms | 0.00 | - | 0.01 | 0.62 | 0.01 | - | 0.01 | 0.03 | 0.36 | 1 | |
| takr | 130 ms | 0.01 | 0.16 | 0.10 | 0.68 | - | 0.05 | 0.05 | 0.16 | 0.34 | 1 | |
| takr2 | 214 ms | - | - | 0.10 | 0.63 | 0.12 | 0.02 | - | 0.14 | 0.37 | 1 | |
| triangle | 451 ms | 0.03 | - | 0.03 | 0.71 | 0.02 | 0.04 | 0.03 | 0.05 | 0.53 | 1 |