Programming Language and compiler
Benchmarks

C 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.)

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.7ms 0.3ms 1.4MB 0ms 0ms clang 14.0.0
c 1.c 1.8ms 0.5ms 1.3MB 0ms 0ms gcc 12.2.0
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
c 1.c 3.4ms 0.1ms 0.0MB 0ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 251ms 4.3ms 23.5MB 417ms 7ms gcc 12.2.0
c 1-m.c 476ms 1.3ms 20.4MB 850ms 7ms clang 14.0.0
d 1-m.d 1060ms 13ms 60.6MB 1837ms 17ms ldc2 1.30.0
d 1-m.d 4045ms 73ms 55.9MB 7203ms 20ms dmd 2.101.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 33ms 2.2ms 12.8MB 43ms 3ms gcc 12.2.0
c 1-m.c 59ms 0.9ms 9.7MB 93ms 0ms clang 14.0.0
d 1-m.d 134ms 5.8ms 39.2MB 220ms 3ms ldc2 1.30.0
d 1-m.d 419ms 16ms 42.4MB 757ms 3ms dmd 2.101.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 315ms 3.9ms 1.3MB 297ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 320ms 0.3ms 1.3MB 310ms 0ms gcc 12.2.0
c 5.c 329ms 1.2ms 1.0MB 317ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 331ms 0.2ms 1.4MB 320ms 0ms clang 14.0.0
c 2.c 340ms 2.0ms 1.2MB 327ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 2.c 341ms 0.6ms 1.4MB 330ms 0ms clang 14.0.0
c 8-i.c 365ms 0.8ms 1.3MB 350ms 0ms gcc 12.2.0
c 8-i.c 373ms 2.0ms 1.4MB 360ms 0ms clang 14.0.0
d 1.d 409ms 1.3ms 1.5MB 400ms 0ms ldc2 1.30.0
d 2.d 422ms 0.1ms 1.5MB 410ms 0ms ldc2 1.30.0
c 2.c 624ms 0.7ms 1.3MB 610ms 0ms gcc 12.2.0
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
c 8-i.c 33ms 0.2ms 1.3MB 20ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 5.c 34ms 0.3ms 1.3MB 23ms 0ms gcc 12.2.0
c 5.c 35ms 0.2ms 1.4MB 27ms 0ms clang 14.0.0
c 5.c 36ms 0.6ms 1.0MB 27ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 2.c 37ms 1.2ms 1.4MB 30ms 0ms clang 14.0.0
c 2.c 37ms 1.0ms 2.0MB 27ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 8-i.c 38ms 0.2ms 1.3MB 30ms 0ms gcc 12.2.0
c 8-i.c 40ms 0.9ms 1.4MB 30ms 0ms clang 14.0.0
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
c 2.c 65ms 0.4ms 1.3MB 53ms 0ms gcc 12.2.0
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
c 1.c 578ms 9.5ms 40.8MB 553ms 7ms clang 14.0.0
c 1.c 593ms 23ms 40.2MB 570ms 7ms zigcc 0.11.0-dev.1479+97b1a9bb6
d 1.d 602ms 26ms 42.4MB 583ms 3ms ldc2 1.30.0
c 1.c 632ms 33ms 41.1MB 600ms 13ms gcc 12.2.0
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
c 1.c 115ms 1.2ms 11.4MB 103ms 0ms clang 14.0.0
c 1.c 119ms 3.0ms 11.1MB 110ms 0ms zigcc 0.11.0-dev.1479+97b1a9bb6
c 1.c 120ms 2.3ms 11.8MB 110ms 0ms gcc 12.2.0
d 1.d 125ms 0.4ms 14.4MB 110ms 0ms ldc2 1.30.0
d 1.d 140ms 1.6ms 23.0MB 123ms 0ms dmd 2.101.2
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

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 1389ms 1.4ms 1.3MB 2723ms 0ms gcc 12.2.0
c 6-im.c 1613ms 2.8ms 1.3MB 3163ms 0ms gcc 12.2.0
c 6-im.c 1684ms 16ms 3.3MB 3300ms 0ms clang 14.0.0
c 4-m.c 1698ms 5.3ms 3.1MB 3337ms 0ms clang 14.0.0
c 5-im.c 1848ms 11ms 1.3MB 3630ms 0ms gcc 12.2.0
c 5-im.c 2152ms 3.8ms 3.2MB 4233ms 0ms clang 14.0.0
c 3-m.c 2200ms 14ms 1.3MB 4330ms 0ms gcc 12.2.0
c 3-m.c 2210ms 8.6ms 3.2MB 4337ms 3ms clang 14.0.0
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
c 4-m.c 357ms 1.3ms 1.3MB 687ms 0ms gcc 12.2.0
c 6-im.c 416ms 4.5ms 1.3MB 793ms 0ms gcc 12.2.0
c 6-im.c 431ms 2.2ms 3.1MB 820ms 0ms clang 14.0.0
c 4-m.c 436ms 2.6ms 3.1MB 837ms 0ms clang 14.0.0
c 5-im.c 472ms 2.2ms 1.3MB 907ms 0ms gcc 12.2.0
c 3-m.c 560ms 4.0ms 1.3MB 1080ms 0ms gcc 12.2.0
c 3-m.c 564ms 4.7ms 3.2MB 1090ms 0ms clang 14.0.0
c 5-im.c 590ms 76ms 3.3MB 1093ms 0ms clang 14.0.0
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
c 4-m.c 102ms 3.6ms 1.3MB 177ms 0ms gcc 12.2.0
c 6-im.c 112ms 2.5ms 1.3MB 200ms 0ms gcc 12.2.0
c 6-im.c 115ms 0.2ms 3.2MB 203ms 0ms clang 14.0.0
c 4-m.c 119ms 2.3ms 3.5MB 210ms 0ms clang 14.0.0
c 5-im.c 127ms 0.5ms 1.3MB 230ms 0ms gcc 12.2.0
c 5-im.c 147ms 2.5ms 3.2MB 263ms 3ms clang 14.0.0
c 3-m.c 149ms 1.3ms 3.3MB 273ms 0ms gcc 12.2.0
c 3-m.c 150ms 1.7ms 3.2MB 273ms 0ms clang 14.0.0
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