Programming Language and compiler
Benchmarks

Nim VS D benchmarks

Current benchmark data was generated on Sat Jan 28 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 1946ms 26ms 35.1MB 1927ms 3ms nim 1.6.10
nim 2.nim 2142ms 32ms 35.5MB 2120ms 7ms nim/clang 1.6.10
d 1.d 3074ms 49ms 75.1MB 3313ms 13ms ldc2 1.30.0
d 1.d 4033ms 80ms 185.0MB 4573ms 23ms dmd 2.101.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 183ms 0.2ms 5.5MB 170ms 0ms nim 1.6.10
nim 2.nim 195ms 1.2ms 5.7MB 187ms 0ms nim/clang 1.6.10
d 1.d 271ms 8.3ms 15.2MB 263ms 0ms ldc2 1.30.0
d 1.d 332ms 4.3ms 26.5MB 340ms 0ms dmd 2.101.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d timeout 0.0ms 14.6MB 4980ms 3ms dmd 2.101.2
d 1.d timeout 0.0ms 14.2MB 4970ms 10ms ldc2 1.30.0
nim 1.nim timeout 0.0ms 425.1MB 3367ms 1280ms nim 1.6.10
nim 1.nim timeout 0.0ms 425.7MB 3353ms 1293ms nim/clang 1.6.10

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1305ms 1.7ms 8.1MB 1293ms 3ms ldc2 1.30.0
d 1.d 1625ms 1.7ms 9.1MB 1610ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 424.7MB 3407ms 1243ms nim 1.6.10
nim 1.nim timeout 0.0ms 428.4MB 3300ms 1347ms nim/clang 1.6.10

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3852ms 9.9ms 8.0MB 3840ms 0ms ldc2 1.30.0
d 1.d 4481ms 0.4ms 8.9MB 4470ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 3.0MB 4983ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 2.9MB 4990ms 0ms nim/clang 1.6.10

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 659ms 0.7ms 7.0MB 650ms 0ms ldc2 1.30.0
d 1.d 815ms 4.8ms 8.5MB 803ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 2.3MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 2.3MB 4990ms 0ms nim/clang 1.6.10

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 235ms 7.0ms 28.5MB 217ms 7ms ldc2 1.30.0
nim 2.nim 268ms 0.2ms 1.0MB 260ms 0ms nim 1.6.10
nim 2.nim 335ms 0.2ms 1.3MB 327ms 0ms nim/clang 1.6.10
nim 1.nim 779ms 4.3ms 1.1MB 687ms 73ms nim 1.6.10
d 1.d 793ms 2.2ms 40.3MB 773ms 7ms dmd 2.101.2
nim 1.nim 796ms 1.3ms 1.2MB 687ms 93ms nim/clang 1.6.10

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 28ms 1.8ms 7.4MB 17ms 0ms ldc2 1.30.0
nim 2.nim 32ms 3.0ms 1.1MB 20ms 0ms nim 1.6.10
nim 2.nim 37ms 2.3ms 1.3MB 27ms 0ms nim/clang 1.6.10
nim 1.nim 79ms 0.1ms 1.1MB 57ms 7ms nim 1.6.10
d 1.d 82ms 0.7ms 9.2MB 70ms 0ms dmd 2.101.2
nim 1.nim 83ms 1.7ms 1.3MB 67ms 3ms nim/clang 1.6.10

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.5ms 0.8ms 1.3MB 0ms 0ms nim/clang 1.6.10
nim 1.nim 1.7ms 0.7ms 1.0MB 0ms 0ms nim 1.6.10
d 1.d 2.1ms 0.6ms 3.0MB 0ms 0ms ldc2 1.30.0
d 1.d 2.3ms 0.6ms 4.0MB 0ms 0ms dmd 2.101.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 724ms 4.5ms 94.5MB 323ms 367ms nim 1.6.10
nim 1.nim 726ms 1.1ms 94.5MB 320ms 373ms nim/clang 1.6.10

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 122ms 1.9ms 18.0MB 47ms 53ms nim/clang 1.6.10
nim 1.nim 122ms 1.2ms 17.8MB 53ms 53ms nim 1.6.10

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 147ms 1.5ms 1.2MB 140ms 0ms nim/clang 1.6.10
nim 2.nim 151ms 0.4ms 1.0MB 140ms 0ms nim 1.6.10
d 1.d 177ms 2.8ms 3.7MB 170ms 0ms ldc2 1.30.0
d 1.d 253ms 1.6ms 4.9MB 240ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 1.0MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim/clang 1.6.10

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 430ms 1.7ms 1.2MB 420ms 0ms nim/clang 1.6.10
nim 2.nim 448ms 1.1ms 1.0MB 437ms 0ms nim 1.6.10
d 1.d 520ms 1.8ms 5.7MB 510ms 0ms ldc2 1.30.0
d 1.d 748ms 2.3ms 4.9MB 737ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 1.0MB 4990ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 1.3MB 4983ms 0ms nim/clang 1.6.10

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 63ms 0.2ms 1.3MB 50ms 0ms nim/clang 1.6.10
nim 2.nim 65ms 0.7ms 1.1MB 57ms 0ms nim 1.6.10
d 1.d 75ms 0.7ms 3.6MB 63ms 0ms ldc2 1.30.0
d 1.d 112ms 2.5ms 4.7MB 103ms 0ms dmd 2.101.2
nim 1.nim 387ms 3.1ms 1.2MB 373ms 0ms nim/clang 1.6.10
nim 1.nim 465ms 40ms 1.0MB 447ms 0ms nim 1.6.10

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 656ms 0.5ms 4.6MB 647ms 0ms nim/clang 1.6.10
d 1.d 689ms 1.8ms 7.2MB 680ms 0ms ldc2 1.30.0
nim 1.nim 982ms 1.4ms 4.5MB 970ms 0ms nim 1.6.10
d 1.d 2757ms 4.3ms 6.7MB 2747ms 0ms dmd 2.101.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 30ms 1.0ms 1.3MB 20ms 0ms nim/clang 1.6.10
nim 1.nim 43ms 0.5ms 1.1MB 30ms 0ms nim 1.6.10
d 1.d 45ms 23ms 3.0MB 33ms 0ms ldc2 1.30.0
d 1.d 117ms 0.7ms 3.4MB 110ms 0ms dmd 2.101.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1003ms 8.6ms 34.3MB 983ms 3ms nim 1.6.10
nim 1.nim 1037ms 18ms 35.2MB 1013ms 7ms nim/clang 1.6.10
d 1.d 1414ms 25ms 74.8MB 1473ms 10ms ldc2 1.30.0
d 1.d 2411ms 15ms 153.5MB 2713ms 17ms dmd 2.101.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 213ms 1.3ms 9.3MB 197ms 0ms nim 1.6.10
nim 1.nim 222ms 1.4ms 9.5MB 210ms 0ms nim/clang 1.6.10
d 1.d 261ms 3.6ms 38.8MB 243ms 7ms ldc2 1.30.0
d 1.d 479ms 2.4ms 40.1MB 510ms 3ms dmd 2.101.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 381ms 0.4ms 1.3MB 370ms 0ms nim 1.6.10
d 1.d 409ms 1.3ms 1.5MB 400ms 0ms ldc2 1.30.0
nim 2.nim 412ms 3.2ms 1.3MB 403ms 0ms nim/clang 1.6.10
d 2.d 422ms 0.1ms 1.5MB 410ms 0ms ldc2 1.30.0
d 1.d 1535ms 4.6ms 2.3MB 1523ms 0ms dmd 2.101.2
d 2.d 2861ms 4.3ms 2.3MB 2850ms 0ms dmd 2.101.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 40ms 0.0ms 1.4MB 30ms 0ms nim 1.6.10
nim 2.nim 43ms 0.2ms 1.2MB 30ms 0ms nim/clang 1.6.10
d 1.d 43ms 0.4ms 1.6MB 33ms 0ms ldc2 1.30.0
d 2.d 45ms 0.1ms 1.5MB 37ms 0ms ldc2 1.30.0
d 1.d 156ms 0.5ms 2.3MB 150ms 0ms dmd 2.101.2
d 2.d 290ms 0.5ms 2.4MB 280ms 0ms dmd 2.101.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 574ms 11ms 40.6MB 553ms 0ms nim/clang 1.6.10
nim 1.nim 587ms 10ms 40.2MB 570ms 0ms nim 1.6.10
nim 2.nim 587ms 4.0ms 6.4MB 573ms 0ms nim/clang 1.6.10
d 1.d 602ms 26ms 42.4MB 583ms 3ms ldc2 1.30.0
nim 2.nim 667ms 5.2ms 6.2MB 657ms 0ms nim 1.6.10
d 1.d 675ms 8.3ms 75.0MB 650ms 10ms dmd 2.101.2
d 2.d 862ms 4.4ms 48.3MB 833ms 10ms ldc2 1.30.0
d 2.d 1571ms 2.0ms 48.6MB 1550ms 7ms dmd 2.101.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 125ms 0.4ms 14.4MB 110ms 0ms ldc2 1.30.0
nim 1.nim 128ms 2.1ms 11.3MB 120ms 0ms nim/clang 1.6.10
nim 1.nim 128ms 0.4ms 11.1MB 120ms 0ms nim 1.6.10
nim 2.nim 138ms 0.3ms 3.2MB 130ms 0ms nim/clang 1.6.10
d 1.d 140ms 1.6ms 23.0MB 123ms 0ms dmd 2.101.2
nim 2.nim 157ms 0.3ms 3.1MB 143ms 0ms nim 1.6.10
d 2.d 208ms 1.9ms 15.1MB 190ms 0ms ldc2 1.30.0
d 2.d 391ms 0.9ms 15.6MB 380ms 0ms dmd 2.101.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3481ms 14ms 7.8MB 3460ms 13ms ldc2 1.30.0
d 1.d timeout 0.0ms 8.8MB 4980ms 17ms dmd 2.101.2
nim 1.nim timeout 0.0ms 5.9MB 4987ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 6.1MB 4987ms 0ms nim/clang 1.6.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 826ms 2.3ms 7.7MB 813ms 3ms ldc2 1.30.0
d 1.d 1659ms 2.9ms 8.9MB 1647ms 0ms dmd 2.101.2
nim 1.nim timeout 0.0ms 5.9MB 4987ms 0ms nim 1.6.10
nim 1.nim timeout 0.0ms 6.1MB 4990ms 0ms nim/clang 1.6.10

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 815ms 1.9ms 165.8MB 1023ms 47ms ldc2 1.30.0
d 3.d 1647ms 5.7ms 171.3MB 1887ms 30ms dmd 2.101.2
nim 1.nim 2490ms 1.9ms 168.2MB 2440ms 30ms nim/clang 1.6.10
nim 1.nim 2531ms 3.9ms 167.4MB 2480ms 33ms nim 1.6.10

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 86ms 1.3ms 23.7MB 100ms 0ms ldc2 1.30.0
d 3.d 176ms 2.9ms 27.3MB 190ms 0ms dmd 2.101.2
nim 1.nim 256ms 2.0ms 17.0MB 233ms 3ms nim/clang 1.6.10
nim 1.nim 260ms 2.1ms 16.8MB 247ms 0ms nim 1.6.10

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 4118ms 2.6ms 1.3MB 4107ms 0ms nim/clang 1.6.10
nim 1.nim 4118ms 1.5ms 1.3MB 4107ms 0ms nim 1.6.10
d 1.d 4289ms 1.5ms 3.9MB 4280ms 0ms ldc2 1.30.0
d 1.d 4784ms 5.5ms 4.8MB 4773ms 0ms dmd 2.101.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1031ms 0.1ms 1.2MB 1020ms 0ms nim/clang 1.6.10
nim 1.nim 1033ms 3.1ms 1.3MB 1020ms 0ms nim 1.6.10
d 1.d 1078ms 5.2ms 3.4MB 1067ms 0ms ldc2 1.30.0
d 1.d 1198ms 0.8ms 4.3MB 1190ms 0ms dmd 2.101.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 260ms 0.1ms 1.3MB 250ms 0ms nim 1.6.10
nim 1.nim 261ms 0.1ms 1.3MB 250ms 0ms nim/clang 1.6.10
d 1.d 271ms 0.7ms 3.0MB 260ms 0ms ldc2 1.30.0
d 1.d 302ms 0.4ms 4.1MB 290ms 0ms dmd 2.101.2