Programming Language and compiler
Benchmarks

V VS D benchmarks

Current benchmark data was generated on Mon Jun 23 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -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
v 1.v 864ms 25ms 28.9MB 853ms 0ms v/clang+gc 0.4.11
v 1.v 2188ms 3.5ms 2086.6MB 1307ms 867ms v/clang 0.4.11
d 1.d 2244ms 4.4ms 312.4MB 2210ms 43ms ldc2 1.41.0
d 1.d 3045ms 8.9ms 315.0MB 3220ms 50ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 71ms 0.8ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
v 1.v 205ms 4.7ms 198.0MB 110ms 83ms v/clang 0.4.11
d 1.d 208ms 3.2ms 207.1MB 190ms 10ms ldc2 1.41.0
d 1.d 261ms 1.1ms 208.7MB 237ms 13ms dmd 2.111.0

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 18.2MB 4963ms 23ms dmd 2.111.0
d 1.d timeout 0.0ms 15.3MB 4957ms 27ms ldc2 1.41.0
v 1.v timeout 0.0ms 17.5MB 8343ms 10803ms v/clang 0.4.11
v 1.v timeout 0.0ms 17.6MB 8653ms 10620ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1081ms 24ms 10.3MB 1053ms 17ms ldc2 1.41.0
v 1-m.v 1345ms 36ms 9.8MB 2223ms 2887ms v/clang 0.4.11
d 1.d 1398ms 9.7ms 12.3MB 1370ms 13ms dmd 2.111.0
v 1-m.v 1657ms 68ms 10.4MB 2843ms 3423ms v/clang+gc 0.4.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2555ms 6.6ms 8.0MB 2543ms 0ms ldc2 1.41.0
d 1.d 2868ms 6.9ms 10.4MB 2853ms 0ms dmd 2.111.0
v 1.v timeout 0.0ms 8.1MB 4990ms 0ms v/clang+gc 0.4.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 442ms 1.2ms 8.1MB 430ms 0ms ldc2 1.41.0
d 1.d 519ms 1.1ms 10.5MB 510ms 0ms dmd 2.111.0
v 1.v timeout 0.0ms 4.5MB 4990ms 0ms v/clang+gc 0.4.11

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 379ms 0.9ms 3.0MB 1427ms 0ms ldc2 1.41.0
d 2-im.d 1124ms 2.7ms 3.0MB 4320ms 0ms ldc2 1.41.0
d 1-i.d 1487ms 0.9ms 2.9MB 1480ms 0ms ldc2 1.41.0
v 1.v 2201ms 5.0ms 1.9MB 2193ms 0ms v/clang+gc 0.4.11
v 1.v 2314ms 97ms 1.1MB 2307ms 0ms v/clang 0.4.11
d 1.d 3114ms 14ms 2.9MB 3107ms 0ms ldc2 1.41.0
d 2-i.d 3236ms 19ms 2.9MB 3230ms 0ms ldc2 1.41.0
d 1.d 3542ms 12ms 4.8MB 3533ms 0ms dmd 2.111.0
d 1-im.d 4502ms 67ms 4.8MB 17493ms 7ms dmd 2.111.0
d 1-i.d timeout 0.0ms 4.5MB 4990ms 0ms dmd 2.111.0
d 2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
d 2-im.d timeout 0.0ms 4.9MB 19737ms 17ms dmd 2.111.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 39ms 2.8ms 2.9MB 110ms 0ms ldc2 1.41.0
d 2-im.d 99ms 1.5ms 3.0MB 343ms 0ms ldc2 1.41.0
d 1-i.d 124ms 0.5ms 2.9MB 117ms 0ms ldc2 1.41.0
v 1.v 188ms 2.1ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
v 1.v 193ms 1.7ms 1.1MB 183ms 0ms v/clang 0.4.11
d 1.d 265ms 1.9ms 2.9MB 257ms 0ms ldc2 1.41.0
d 2-i.d 266ms 1.3ms 2.9MB 260ms 0ms ldc2 1.41.0
d 1.d 298ms 3.2ms 4.6MB 290ms 0ms dmd 2.111.0
d 1-im.d 376ms 1.8ms 4.9MB 1430ms 0ms dmd 2.111.0
d 2-im.d 530ms 2.8ms 4.9MB 2010ms 0ms dmd 2.111.0
d 1-i.d 893ms 17ms 4.6MB 883ms 0ms dmd 2.111.0
d 2-i.d 1386ms 12ms 4.5MB 1377ms 0ms dmd 2.111.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 112ms 2.0ms 2.9MB 103ms 0ms ldc2 1.41.0
v 1.v 505ms 3.4ms 1.3MB 497ms 0ms v/clang 0.4.11
v 1.v 528ms 4.5ms 2.1MB 513ms 0ms v/clang+gc 0.4.11
d 1.d 653ms 24ms 4.8MB 643ms 0ms dmd 2.111.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 15ms 1.4ms 2.9MB 10ms 0ms ldc2 1.41.0
v 1.v 53ms 0.7ms 1.3MB 47ms 0ms v/clang 0.4.11
v 1.v 56ms 2.1ms 2.1MB 50ms 0ms v/clang+gc 0.4.11
d 1.d 68ms 1.5ms 4.8MB 60ms 0ms dmd 2.111.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.3ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
d 1.d 1.7ms 0.2ms 3.0MB 0ms 0ms ldc2 1.41.0
d 1.d 1.9ms 0.2ms 5.1MB 0ms 0ms dmd 2.111.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 133ms 2.9ms 5.9MB 127ms 3ms ldc2 1.41.0
d 1.d 175ms 1.0ms 8.0MB 163ms 3ms dmd 2.111.0
v 1.v 262ms 4.6ms 2.1MB 253ms 0ms v/clang+gc 0.4.11
v 1.v 266ms 2.4ms 1.3MB 260ms 0ms v/clang 0.4.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 382ms 1.3ms 5.9MB 370ms 17ms ldc2 1.41.0
d 1.d 515ms 2.4ms 7.9MB 510ms 13ms dmd 2.111.0
v 1.v 771ms 2.0ms 2.1MB 760ms 0ms v/clang+gc 0.4.11
v 1.v 789ms 22ms 1.3MB 780ms 0ms v/clang 0.4.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 59ms 1.7ms 6.1MB 50ms 0ms ldc2 1.41.0
d 1.d 80ms 1.6ms 8.2MB 70ms 0ms dmd 2.111.0
v 1.v 91ms 1.3ms 1.3MB 83ms 0ms v/clang 0.4.11
v 1.v 103ms 2.6ms 2.1MB 97ms 0ms v/clang+gc 0.4.11

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.0ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
v 1.v 312ms 2.1ms 1.6MB 300ms 0ms v/clang 0.4.11
d 2.d 361ms 1.5ms 2.9MB 350ms 0ms ldc2 1.41.0
d 1.d 361ms 1.0ms 2.9MB 350ms 0ms ldc2 1.41.0
d 1.d 683ms 2.8ms 4.6MB 673ms 0ms dmd 2.111.0
d 2.d 2027ms 4.0ms 4.6MB 2017ms 0ms dmd 2.111.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.1ms 2.3MB 20ms 0ms v/clang+gc 0.4.11
v 1.v 34ms 1.0ms 1.6MB 27ms 0ms v/clang 0.4.11
d 1.d 38ms 0.4ms 2.9MB 30ms 0ms ldc2 1.41.0
d 2.d 39ms 0.4ms 2.9MB 30ms 0ms ldc2 1.41.0
d 1.d 71ms 1.3ms 4.8MB 60ms 0ms dmd 2.111.0
d 2.d 213ms 7.6ms 4.8MB 203ms 0ms dmd 2.111.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 326ms 4.7ms 45.7MB 310ms 0ms ldc2 1.41.0
v 1.v 329ms 14ms 40.3MB 313ms 0ms v/clang 0.4.11
v 2.v 330ms 2.6ms 6.1MB 320ms 0ms v/clang 0.4.11
v 2.v 330ms 5.1ms 6.9MB 320ms 0ms v/clang+gc 0.4.11
d 1.d 378ms 9.9ms 79.3MB 360ms 3ms dmd 2.111.0
v 1.v 447ms 7.3ms 60.6MB 430ms 0ms v/clang+gc 0.4.11
d 2.d 846ms 1.8ms 49.7MB 827ms 10ms ldc2 1.41.0
d 2.d 1175ms 4.5ms 51.7MB 1150ms 13ms dmd 2.111.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 2.0ms 11.1MB 50ms 0ms v/clang 0.4.11
v 1.v 62ms 2.1ms 11.9MB 50ms 0ms v/clang+gc 0.4.11
d 1.d 62ms 2.9ms 15.7MB 50ms 0ms ldc2 1.41.0
d 1.d 76ms 1.4ms 25.3MB 60ms 0ms dmd 2.111.0
v 2.v 82ms 2.0ms 2.4MB 73ms 0ms v/clang 0.4.11
v 2.v 83ms 1.6ms 3.1MB 70ms 0ms v/clang+gc 0.4.11
d 2.d 212ms 2.5ms 17.7MB 197ms 0ms ldc2 1.41.0
d 2.d 295ms 1.4ms 19.8MB 280ms 0ms dmd 2.111.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2448ms 17ms 8.1MB 2423ms 410ms ldc2 1.41.0
v 2.v 3216ms 15ms 3.5MB 3197ms 7ms v/clang+gc 0.4.11
d 1.d 4455ms 6.5ms 10.5MB 4357ms 523ms dmd 2.111.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 585ms 1.9ms 8.1MB 563ms 107ms ldc2 1.41.0
v 2.v 801ms 11ms 3.1MB 790ms 0ms v/clang+gc 0.4.11
d 1.d 1056ms 1.9ms 10.3MB 1033ms 117ms dmd 2.111.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 579ms 2.7ms 172.3MB 760ms 23ms ldc2 1.41.0
d 3.d 1221ms 2.5ms 175.1MB 1400ms 33ms dmd 2.111.0
v 1.v timeout 0.0ms 83.1MB 4980ms 10ms v/clang+gc 0.4.11

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 67ms 4.3ms 28.6MB 73ms 0ms ldc2 1.41.0
d 3.d 131ms 3.2ms 31.5MB 140ms 0ms dmd 2.111.0
v 1.v 3540ms 93ms 26.0MB 3523ms 3ms v/clang+gc 0.4.11

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3601ms 8.6ms 6.1MB 3593ms 0ms ldc2 1.41.0
d 1.d 3668ms 32ms 8.4MB 3657ms 0ms dmd 2.111.0
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.11
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 911ms 17ms 3.8MB 900ms 0ms ldc2 1.41.0
d 1.d 915ms 7.3ms 5.4MB 907ms 0ms dmd 2.111.0
v 1.v 1286ms 8.5ms 1.5MB 1277ms 0ms v/clang 0.4.11
v 1.v 1326ms 6.9ms 2.5MB 1313ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 229ms 1.2ms 3.1MB 220ms 0ms ldc2 1.41.0
d 1.d 235ms 1.0ms 5.0MB 223ms 0ms dmd 2.111.0
v 1.v 326ms 0.7ms 1.9MB 320ms 0ms v/clang 0.4.11
v 1.v 334ms 0.7ms 2.5MB 320ms 0ms v/clang+gc 0.4.11