Programming Language and compiler
Benchmarks

Nim VS D benchmarks

Current benchmark data was generated on Mon Oct 03 2022, 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
d 1.d 3016ms 25ms 75.2MB 3230ms 23ms ldc2 1.30.0
nim 2.nim 3377ms 55ms 34.4MB 3353ms 7ms nim/clang 1.6.8
nim 2.nim 3539ms 69ms 35.1MB 3510ms 13ms nim 1.6.8
d 1.d 4680ms 29ms 124.4MB 4780ms 17ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 266ms 5.5ms 15.2MB 253ms 0ms ldc2 1.30.0
nim 2.nim 319ms 3.0ms 5.7MB 307ms 0ms nim/clang 1.6.8
nim 2.nim 330ms 0.7ms 5.4MB 317ms 0ms nim 1.6.8
d 1.d 380ms 9.7ms 16.2MB 370ms 0ms dmd 2.100.2

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 0.0MB 0ms 0ms dmd 2.100.2
d 1.d timeout 0.0ms 0.0MB 0ms 0ms ldc2 1.30.0
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1304ms 23ms 8.5MB 1287ms 0ms ldc2 1.30.0
d 1.d 1628ms 5.5ms 9.4MB 1610ms 3ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3826ms 3.2ms 7.9MB 3817ms 0ms ldc2 1.30.0
d 1.d 4475ms 0.9ms 8.8MB 4463ms 0ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 656ms 1.6ms 7.8MB 643ms 0ms ldc2 1.30.0
d 1.d 813ms 2.0ms 8.7MB 797ms 3ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 203ms 0.5ms 27.7MB 180ms 10ms ldc2 1.30.0
nim 2.nim 257ms 0.4ms 0.7MB 250ms 0ms nim 1.6.8
nim 2.nim 339ms 2.7ms 1.0MB 327ms 0ms nim/clang 1.6.8
d 1.d 767ms 1.9ms 46.9MB 753ms 7ms dmd 2.100.2
nim 1.nim 786ms 1.8ms 0.6MB 683ms 80ms nim 1.6.8
nim 1.nim 809ms 2.8ms 1.0MB 720ms 70ms nim/clang 1.6.8

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 24ms 0.5ms 7.2MB 13ms 0ms ldc2 1.30.0
nim 2.nim 29ms 0.4ms 0.7MB 20ms 0ms nim 1.6.8
nim 2.nim 37ms 0.6ms 0.9MB 30ms 0ms nim/clang 1.6.8
d 1.d 81ms 0.7ms 12.5MB 70ms 0ms dmd 2.100.2
nim 1.nim 83ms 0.4ms 1.0MB 67ms 3ms nim/clang 1.6.8
nim 1.nim 84ms 4.0ms 0.7MB 67ms 3ms nim 1.6.8

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.6ms 0.4ms 0.7MB 0ms 0ms nim 1.6.8
nim 1.nim 1.9ms 0.7ms 1.0MB 0ms 0ms nim/clang 1.6.8
d 1.d 2.3ms 0.6ms 3.0MB 0ms 0ms ldc2 1.30.0
d 1.d 2.5ms 0.8ms 4.0MB 0ms 0ms dmd 2.100.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 731ms 2.3ms 94.2MB 330ms 367ms nim 1.6.8
nim 1.nim 735ms 1.5ms 94.3MB 297ms 407ms nim/clang 1.6.8

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 123ms 0.9ms 18.3MB 53ms 57ms nim 1.6.8
nim 1.nim 125ms 0.9ms 18.7MB 40ms 67ms nim/clang 1.6.8

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 147ms 0.8ms 1.0MB 140ms 0ms nim/clang 1.6.8
nim 2.nim 158ms 1.3ms 0.7MB 150ms 0ms nim 1.6.8
d 1.d 179ms 0.8ms 4.1MB 170ms 0ms ldc2 1.30.0
d 1.d 245ms 1.5ms 4.9MB 237ms 0ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 434ms 0.5ms 0.9MB 420ms 0ms nim/clang 1.6.8
nim 2.nim 466ms 0.8ms 0.7MB 457ms 0ms nim 1.6.8
d 1.d 526ms 1.0ms 4.0MB 520ms 0ms ldc2 1.30.0
d 1.d 722ms 0.5ms 5.0MB 713ms 0ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 65ms 0.6ms 1.0MB 53ms 0ms nim/clang 1.6.8
nim 2.nim 68ms 0.9ms 0.6MB 60ms 0ms nim 1.6.8
d 1.d 78ms 0.1ms 4.2MB 70ms 0ms ldc2 1.30.0
d 1.d 106ms 0.3ms 4.7MB 97ms 0ms dmd 2.100.2
nim 1.nim 419ms 6.5ms 1.0MB 407ms 0ms nim/clang 1.6.8
nim 1.nim 448ms 0.6ms 0.7MB 440ms 0ms nim 1.6.8

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 574ms 0.5ms 7.0MB 560ms 0ms ldc2 1.30.0
nim 1.nim 575ms 0.8ms 4.9MB 563ms 0ms nim/clang 1.6.8
nim 1.nim 996ms 0.9ms 4.5MB 983ms 0ms nim 1.6.8
d 1.d 2509ms 1.2ms 6.9MB 2497ms 0ms dmd 2.100.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 27ms 0.2ms 2.9MB 20ms 0ms ldc2 1.30.0
nim 1.nim 27ms 0.3ms 2.0MB 20ms 0ms nim/clang 1.6.8
nim 1.nim 44ms 0.9ms 0.7MB 33ms 0ms nim 1.6.8
d 1.d 107ms 0.3ms 3.4MB 97ms 0ms dmd 2.100.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1405ms 17ms 75.1MB 1467ms 7ms ldc2 1.30.0
nim 1.nim 1605ms 45ms 34.8MB 1583ms 3ms nim/clang 1.6.8
nim 1.nim 1659ms 3.2ms 35.1MB 1637ms 3ms nim 1.6.8
d 1.d 2623ms 16ms 153.4MB 2913ms 33ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 277ms 1.6ms 38.9MB 260ms 7ms ldc2 1.30.0
nim 1.nim 340ms 1.1ms 9.9MB 327ms 0ms nim/clang 1.6.8
nim 1.nim 359ms 2.9ms 9.3MB 343ms 0ms nim 1.6.8
d 1.d 543ms 1.1ms 40.0MB 580ms 3ms dmd 2.100.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 405ms 1.0ms 1.0MB 393ms 0ms nim/clang 1.6.8
d 1.d 425ms 0.3ms 1.2MB 420ms 0ms ldc2 1.30.0
nim 2.nim 428ms 0.3ms 1.0MB 413ms 0ms nim 1.6.8
d 2.d 435ms 0.7ms 1.2MB 427ms 0ms ldc2 1.30.0
d 1.d 1533ms 0.7ms 1.9MB 1520ms 0ms dmd 2.100.2
d 2.d 2679ms 1.8ms 2.0MB 2663ms 0ms dmd 2.100.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 46ms 0.6ms 1.2MB 37ms 0ms ldc2 1.30.0
nim 2.nim 46ms 0.7ms 1.0MB 37ms 0ms nim 1.6.8
nim 2.nim 47ms 4.8ms 1.0MB 33ms 0ms nim/clang 1.6.8
d 2.d 47ms 0.3ms 1.2MB 40ms 0ms ldc2 1.30.0
d 1.d 157ms 0.5ms 2.0MB 150ms 0ms dmd 2.100.2
d 2.d 271ms 0.7ms 1.9MB 257ms 0ms dmd 2.100.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 588ms 1.8ms 6.4MB 577ms 0ms nim/clang 1.6.8
d 1.d 618ms 34ms 43.8MB 597ms 10ms ldc2 1.30.0
nim 2.nim 642ms 0.9ms 6.0MB 630ms 0ms nim 1.6.8
nim 1.nim 665ms 15ms 41.1MB 643ms 0ms nim 1.6.8
nim 1.nim 734ms 6.6ms 40.6MB 713ms 3ms nim/clang 1.6.8
d 1.d 739ms 71ms 75.2MB 717ms 7ms dmd 2.100.2
d 2.d 860ms 2.3ms 48.6MB 837ms 7ms ldc2 1.30.0
d 2.d 1638ms 0.3ms 78.7MB 1613ms 7ms dmd 2.100.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 122ms 0.5ms 11.1MB 110ms 0ms nim 1.6.8
d 1.d 128ms 1.2ms 13.9MB 110ms 0ms ldc2 1.30.0
nim 1.nim 128ms 0.3ms 11.4MB 117ms 0ms nim/clang 1.6.8
nim 2.nim 140ms 0.6ms 3.2MB 130ms 0ms nim/clang 1.6.8
d 1.d 140ms 3.9ms 23.5MB 127ms 0ms dmd 2.100.2
nim 2.nim 153ms 1.0ms 2.9MB 140ms 0ms nim 1.6.8
d 2.d 204ms 0.6ms 14.9MB 190ms 0ms ldc2 1.30.0
d 2.d 408ms 0.5ms 16.5MB 393ms 0ms dmd 2.100.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3411ms 0.5ms 7.9MB 3410ms 13ms ldc2 1.30.0
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 807ms 2.2ms 7.9MB 800ms 3ms ldc2 1.30.0
d 1.d 1681ms 5.7ms 8.9MB 1670ms 7ms dmd 2.100.2
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim 1.6.8
nim 1.nim timeout 0.0ms 0.0MB 0ms 0ms nim/clang 1.6.8

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 2569ms 0.7ms 167.2MB 2520ms 30ms nim/clang 1.6.8
nim 1.nim 2574ms 3.7ms 167.2MB 2527ms 33ms nim 1.6.8

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 265ms 1.4ms 17.0MB 250ms 3ms nim/clang 1.6.8
nim 1.nim 266ms 2.0ms 16.7MB 250ms 3ms nim 1.6.8

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 4121ms 3.1ms 1.9MB 4107ms 0ms nim 1.6.8
nim 1.nim 4122ms 2.2ms 1.8MB 4107ms 0ms nim/clang 1.6.8
d 1.d 4594ms 1.9ms 3.8MB 4577ms 0ms ldc2 1.30.0
d 1.d 4786ms 8.0ms 4.5MB 4770ms 0ms dmd 2.100.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1032ms 0.1ms 1.0MB 1020ms 0ms nim/clang 1.6.8
nim 1.nim 1032ms 0.5ms 0.9MB 1020ms 0ms nim 1.6.8
d 1.d 1152ms 0.8ms 3.6MB 1140ms 0ms ldc2 1.30.0
d 1.d 1201ms 3.5ms 4.4MB 1190ms 0ms dmd 2.100.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 260ms 0.9ms 1.0MB 250ms 0ms nim 1.6.8
nim 1.nim 261ms 1.0ms 1.0MB 250ms 0ms nim/clang 1.6.8
d 1.d 292ms 0.4ms 3.4MB 277ms 0ms ldc2 1.30.0
d 1.d 303ms 0.6ms 4.2MB 290ms 0ms dmd 2.100.2