Programming Language and compiler
Benchmarks

All D benchmarks

Current benchmark data was generated on Mon May 19 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 1782ms 3.3ms 312.5MB 1753ms 37ms ldc2 1.40.1
1.d 3057ms 15ms 314.4MB 3227ms 60ms dmd 2.111.0

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 167ms 2.7ms 207.7MB 140ms 13ms ldc2 1.40.1
1.d 262ms 1.0ms 210.5MB 233ms 17ms dmd 2.111.0

coro-prime-sieve

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d timeout 0.0ms 18.2MB 4963ms 20ms dmd 2.111.0
1.d timeout 0.0ms 17.6MB 4963ms 23ms ldc2 1.40.1

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 1046ms 5.9ms 10.5MB 1017ms 13ms ldc2 1.40.1
1.d 1385ms 4.2ms 12.0MB 1360ms 13ms dmd 2.111.0

edigits

Input: 250001

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 2552ms 4.9ms 8.2MB 2540ms 0ms ldc2 1.40.1
1.d 2864ms 4.6ms 10.4MB 2853ms 0ms dmd 2.111.0

Input: 100000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 443ms 3.5ms 8.0MB 433ms 0ms ldc2 1.40.1
1.d 518ms 2.7ms 10.5MB 507ms 0ms dmd 2.111.0

fannkuch-redux

Input: 11

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-im.d 387ms 21ms 3.0MB 1427ms 0ms ldc2 1.40.1
2-im.d 1132ms 37ms 3.0MB 4310ms 0ms ldc2 1.40.1
1-i.d 1484ms 1.2ms 2.8MB 1477ms 0ms ldc2 1.40.1
1.d 3132ms 33ms 2.9MB 3123ms 0ms ldc2 1.40.1
2-i.d 3237ms 4.9ms 2.9MB 3227ms 0ms ldc2 1.40.1
1.d 3534ms 7.1ms 4.6MB 3523ms 0ms dmd 2.111.0
1-im.d 4468ms 16ms 4.8MB 17560ms 0ms dmd 2.111.0
1-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
2-im.d timeout 0.0ms 4.9MB 19707ms 17ms dmd 2.111.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-im.d 37ms 0.6ms 3.0MB 110ms 0ms ldc2 1.40.1
2-im.d 98ms 2.5ms 3.0MB 350ms 0ms ldc2 1.40.1
1-i.d 124ms 0.6ms 2.9MB 120ms 0ms ldc2 1.40.1
1.d 262ms 2.0ms 2.9MB 250ms 0ms ldc2 1.40.1
2-i.d 268ms 1.7ms 2.9MB 260ms 0ms ldc2 1.40.1
1.d 295ms 1.4ms 4.6MB 287ms 0ms dmd 2.111.0
1-im.d 378ms 2.8ms 4.9MB 1427ms 0ms dmd 2.111.0
2-im.d 531ms 3.0ms 4.9MB 2003ms 0ms dmd 2.111.0
1-i.d 902ms 8.7ms 4.6MB 893ms 0ms dmd 2.111.0
2-i.d 1382ms 5.8ms 4.5MB 1373ms 0ms dmd 2.111.0

fasta

Input: 2500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 154ms 1.7ms 2.9MB 143ms 0ms ldc2 1.40.1
1.d 643ms 4.3ms 4.8MB 630ms 0ms dmd 2.111.0

Input: 250000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 19ms 1.1ms 2.9MB 10ms 0ms ldc2 1.40.1
1.d 67ms 0.4ms 4.6MB 60ms 0ms dmd 2.111.0

helloworld

Input: QwQ

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 1.7ms 0.1ms 2.9MB 0ms 0ms ldc2 1.40.1
1.d 1.9ms 0.1ms 5.1MB 0ms 0ms dmd 2.111.0

json-serde

Input: sample 5000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.d 59ms 1.4ms 15.7MB 57ms 10ms ldc2 1.40.1
2.d 237ms 0.5ms 22.5MB 240ms 7ms dmd 2.111.0

Input: canada 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.d 469ms 1.8ms 140.6MB 433ms 37ms ldc2 1.40.1
2.d 2508ms 23ms 161.3MB 2520ms 37ms dmd 2.111.0

knucleotide

Input: 2500000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-m.d 695ms 46ms 47.4MB 2337ms 13ms ldc2 1.40.1
1-m.d 1882ms 53ms 50.6MB 6120ms 20ms dmd 2.111.0

Input: 250000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-m.d 98ms 9.6ms 38.9MB 260ms 10ms ldc2 1.40.1
1-m.d 214ms 9.2ms 39.5MB 653ms 13ms dmd 2.111.0

lru

Input: 1000 1000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 131ms 0.7ms 6.2MB 120ms 0ms ldc2 1.40.1
1.d 176ms 0.9ms 8.0MB 167ms 3ms dmd 2.111.0

Input: 1000 3000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 377ms 0.9ms 5.9MB 367ms 13ms ldc2 1.40.1
1.d 516ms 1.8ms 8.1MB 510ms 10ms dmd 2.111.0

Input: 100 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 56ms 0.4ms 6.1MB 47ms 0ms ldc2 1.40.1
1.d 79ms 1.8ms 7.9MB 70ms 0ms dmd 2.111.0

mandelbrot

Input: 5000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 295ms 0.5ms 7.4MB 283ms 0ms ldc2 1.40.1
1.d 2153ms 61ms 9.4MB 2143ms 0ms dmd 2.111.0

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 15ms 0.6ms 3.0MB 10ms 0ms ldc2 1.40.1
1.d 92ms 3.0ms 5.0MB 83ms 0ms dmd 2.111.0

merkletrees

Input: 17

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 968ms 7.6ms 312.4MB 933ms 40ms ldc2 1.40.1
1.d 1870ms 35ms 314.3MB 2007ms 47ms dmd 2.111.0

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 199ms 1.4ms 312.5MB 160ms 30ms ldc2 1.40.1
1.d 360ms 4.0ms 314.8MB 323ms 33ms dmd 2.111.0

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.d 360ms 0.1ms 2.9MB 350ms 0ms ldc2 1.40.1
1.d 360ms 0.6ms 2.9MB 350ms 0ms ldc2 1.40.1
1.d 680ms 2.4ms 4.8MB 670ms 0ms dmd 2.111.0
2.d 2035ms 5.7ms 4.6MB 2023ms 0ms dmd 2.111.0

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 38ms 0.1ms 2.9MB 30ms 0ms ldc2 1.40.1
2.d 39ms 0.6ms 2.9MB 30ms 0ms ldc2 1.40.1
1.d 72ms 1.0ms 4.8MB 60ms 0ms dmd 2.111.0
2.d 208ms 2.5ms 4.8MB 197ms 0ms dmd 2.111.0

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 321ms 12ms 45.7MB 303ms 3ms ldc2 1.40.1
1.d 359ms 12ms 79.2MB 347ms 0ms dmd 2.111.0
2.d 849ms 1.3ms 47.5MB 830ms 10ms ldc2 1.40.1
2.d 1178ms 13ms 51.8MB 1160ms 10ms dmd 2.111.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 62ms 2.0ms 15.7MB 50ms 0ms ldc2 1.40.1
1.d 75ms 1.6ms 25.5MB 63ms 0ms dmd 2.111.0
2.d 210ms 2.6ms 17.6MB 197ms 0ms ldc2 1.40.1
2.d 292ms 1.6ms 19.6MB 277ms 0ms dmd 2.111.0

pidigits

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 2430ms 7.2ms 8.0MB 2377ms 430ms ldc2 1.40.1
1.d 4442ms 23ms 10.4MB 4377ms 490ms dmd 2.111.0

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 583ms 1.1ms 8.0MB 567ms 103ms ldc2 1.40.1
1.d 1061ms 8.7ms 10.4MB 1033ms 120ms dmd 2.111.0

regex-redux

Input: 2500000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
3.d 569ms 12ms 172.2MB 747ms 20ms ldc2 1.40.1
3.d 1198ms 6.4ms 175.1MB 1387ms 20ms dmd 2.111.0

Input: 250000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
3.d 63ms 1.2ms 26.2MB 70ms 3ms ldc2 1.40.1
3.d 128ms 1.2ms 31.7MB 143ms 0ms dmd 2.111.0

secp256k1

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 4791ms 12ms 4.0MB 4737ms 387ms ldc2 1.40.1
1.d timeout 0.0ms 6.5MB 4933ms 317ms dmd 2.111.0

Input: 500

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 1205ms 8.8ms 3.9MB 1180ms 97ms ldc2 1.40.1
1.d 2046ms 8.3ms 6.5MB 2033ms 103ms dmd 2.111.0

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 3596ms 3.2ms 3.9MB 3583ms 0ms ldc2 1.40.1
1.d 3660ms 2.7ms 6.0MB 3650ms 0ms dmd 2.111.0

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 902ms 2.2ms 3.5MB 890ms 0ms ldc2 1.40.1
1.d 926ms 1.0ms 7.9MB 917ms 0ms dmd 2.111.0

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.d 228ms 0.6ms 3.1MB 220ms 0ms ldc2 1.40.1
1.d 234ms 1.2ms 4.9MB 223ms 0ms dmd 2.111.0