C# VS D benchmarks

Current benchmark data was generated on Fri Sep 30 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (Model 85)

* -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
csharp 1.cs 1701ms 79ms 337.4MB 1520ms 203ms dotnet 6.0.401
csharp 1.cs 2453ms 32ms 106.2MB 2917ms 240ms mono 6.12.0
d 1.d 3555ms 56ms 75.2MB 3803ms 27ms ldc2 1.30.0
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 162ms 2.3ms 42.8MB 130ms 20ms mono 6.12.0
csharp 1.cs 200ms 7.6ms 75.7MB 150ms 27ms dotnet 6.0.401
d 1.d 293ms 2.0ms 15.2MB 273ms 7ms ldc2 1.30.0
d 1.d 440ms 6.7ms 16.2MB 430ms 3ms dmd 2.100.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 4648ms 128ms 86.0MB 7970ms 60ms dotnet 6.0.401
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

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 446ms 9.7ms 73.7MB 703ms 27ms dotnet 6.0.401
d 1.d 1260ms 12ms 8.5MB 1243ms 3ms ldc2 1.30.0
d 1.d 1678ms 10ms 9.4MB 1657ms 3ms dmd 2.100.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms dotnet 6.0.401
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

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 925ms 0.5ms 6.6MB 910ms 0ms ldc2 1.30.0
csharp 1.cs 955ms 2.3ms 45.9MB 903ms 20ms dotnet 6.0.401
d 1.d 1091ms 3.2ms 8.6MB 1080ms 0ms dmd 2.100.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 203ms 2.2ms 31.4MB 177ms 10ms ldc2 1.30.0
csharp 5.cs 472ms 1.0ms 67.2MB 537ms 77ms dotnet 6.0.401
csharp 5-m.cs 535ms 32ms 47.1MB 870ms 137ms mono 6.12.0
d 1.d 648ms 1.7ms 47.9MB 623ms 13ms dmd 2.100.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 25ms 0.8ms 7.2MB 10ms 0ms ldc2 1.30.0
d 1.d 68ms 0.9ms 10.4MB 57ms 0ms dmd 2.100.2
csharp 5.cs 92ms 1.0ms 36.9MB 113ms 17ms mono 6.12.0
csharp 5.cs 139ms 14ms 41.5MB 90ms 13ms dotnet 6.0.401

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2.2ms 0.5ms 2.9MB 0ms 0ms ldc2 1.30.0
d 1.d 2.5ms 0.7ms 4.1MB 0ms 0ms dmd 2.100.2
csharp 1.cs 22ms 1.6ms 25.8MB 10ms 0ms mono 6.12.0
csharp 1.cs 65ms 17ms 29.1MB 22ms 6ms dotnet 6.0.401

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2-http2.cs 650ms 12ms 111.3MB 727ms 87ms dotnet 6.0.401
csharp 2.cs 897ms 21ms 151.3MB 827ms 453ms dotnet 6.0.401
csharp 2-http3.cs 904ms 33ms 278.8MB 940ms 313ms dotnet 7.0.100-rc.1.22431.12
csharp 1-m.cs 918ms 35ms 162.3MB 950ms 433ms dotnet 6.0.401

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 456ms 7.6ms 76.4MB 370ms 110ms dotnet 6.0.401
csharp 1.cs 474ms 9.8ms 83.8MB 477ms 113ms dotnet 6.0.401
csharp 2-http2.cs 510ms 8.7ms 76.7MB 517ms 47ms dotnet 6.0.401
csharp 2-http3.cs 543ms 9.8ms 187.0MB 423ms 163ms dotnet 7.0.100-rc.1.22431.12

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 352ms 7.1ms 67.5MB 307ms 30ms dotnet 6.0.401
csharp 1.cs 541ms 7.0ms 146.6MB 483ms 73ms dotnet 6.0.401

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 2068ms 21ms 278.2MB 2163ms 127ms dotnet 6.0.401
csharp 1.cs 3225ms 40ms 799.6MB 3167ms 387ms dotnet 6.0.401

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 1377ms 237ms 77.3MB 1880ms 40ms dotnet 6.0.401
csharp 6-m.cs 1758ms 25ms 68.4MB 2937ms 27ms mono 6.12.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 270ms 8.0ms 51.9MB 360ms 17ms mono 6.12.0
csharp 6.cs 324ms 7.7ms 66.4MB 293ms 23ms dotnet 6.0.401

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 174ms 0.2ms 4.0MB 160ms 0ms ldc2 1.30.0
csharp 2.cs 195ms 1.2ms 24.9MB 183ms 0ms mono 6.12.0
csharp 2.cs 201ms 9.0ms 27.8MB 173ms 0ms dotnet 6.0.401
d 1.d 253ms 1.4ms 6.8MB 240ms 0ms dmd 2.100.2
csharp 1.cs 1784ms 6.0ms 74.9MB 1737ms 33ms dotnet 6.0.401
csharp 1.cs 3355ms 4.4ms 47.9MB 3307ms 37ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 468ms 7.6ms 28.2MB 440ms 3ms dotnet 6.0.401
d 1.d 511ms 1.6ms 4.0MB 500ms 0ms ldc2 1.30.0
csharp 2.cs 526ms 2.3ms 25.5MB 510ms 0ms mono 6.12.0
d 1.d 743ms 1.6ms 4.8MB 737ms 0ms dmd 2.100.2
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms dotnet 6.0.401
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 76ms 0.5ms 3.7MB 70ms 0ms ldc2 1.30.0
csharp 2.cs 110ms 0.5ms 23.5MB 90ms 3ms mono 6.12.0
d 1.d 112ms 0.6ms 5.1MB 100ms 0ms dmd 2.100.2
csharp 2.cs 132ms 5.4ms 27.9MB 97ms 7ms dotnet 6.0.401
csharp 1.cs 4479ms 24ms 70.6MB 4427ms 23ms dotnet 6.0.401
csharp 1.cs 4608ms 12ms 30.1MB 4587ms 0ms mono 6.12.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 505ms 0.2ms 6.6MB 490ms 0ms ldc2 1.30.0
csharp 2.cs 669ms 14ms 80.5MB 607ms 30ms dotnet 6.0.401
d 1.d 2693ms 2.3ms 7.8MB 2680ms 0ms dmd 2.100.2
csharp 1.cs 3457ms 9.1ms 34.3MB 3410ms 7ms dotnet 6.0.401
csharp 3.cs 3657ms 4.6ms 38.5MB 3623ms 7ms dotnet 6.0.401
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 24ms 0.3ms 3.0MB 10ms 0ms ldc2 1.30.0
csharp 2.cs 97ms 4.7ms 38.8MB 60ms 3ms dotnet 6.0.401
d 1.d 115ms 0.9ms 3.5MB 107ms 0ms dmd 2.100.2
csharp 3.cs 232ms 4.0ms 37.1MB 193ms 7ms dotnet 6.0.401
csharp 1.cs 317ms 2.9ms 33.4MB 290ms 3ms dotnet 6.0.401
csharp 1.cs 740ms 0.8ms 26.9MB 723ms 3ms mono 6.12.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 1094ms 7.3ms 304.4MB 937ms 183ms dotnet 6.0.401
csharp 2.cs 1102ms 13ms 385.1MB 963ms 187ms dotnet 6.0.401
d 1.d 1730ms 5.5ms 74.9MB 1797ms 17ms ldc2 1.30.0
csharp 1.cs 1903ms 28ms 152.3MB 2487ms 133ms mono 6.12.0
d 1.d 2939ms 8.4ms 153.3MB 3277ms 37ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 299ms 3.5ms 132.9MB 217ms 63ms dotnet 6.0.401
csharp 1.cs 318ms 2.0ms 167.0MB 233ms 60ms dotnet 6.0.401
d 1.d 331ms 2.0ms 39.2MB 313ms 7ms ldc2 1.30.0
csharp 1.cs 343ms 1.8ms 72.7MB 317ms 43ms mono 6.12.0
d 1.d 595ms 3.4ms 39.9MB 637ms 10ms dmd 2.100.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 414ms 4.9ms 27.4MB 387ms 3ms dotnet 6.0.401
d 1.d 465ms 0.4ms 1.2MB 457ms 0ms ldc2 1.30.0
d 2.d 482ms 7.5ms 1.2MB 473ms 0ms ldc2 1.30.0
csharp 8.cs 616ms 2.0ms 29.4MB 583ms 7ms dotnet 6.0.401
d 1.d 1239ms 5.5ms 2.0MB 1227ms 0ms dmd 2.100.2
csharp 8.cs 1281ms 1.2ms 25.2MB 1263ms 0ms mono 6.12.0
d 2.d 2903ms 1.3ms 2.0MB 2890ms 0ms dmd 2.100.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 50ms 0.1ms 1.2MB 40ms 0ms ldc2 1.30.0
d 1.d 51ms 2.6ms 1.2MB 40ms 0ms ldc2 1.30.0
csharp 9.cs 91ms 4.1ms 27.4MB 50ms 10ms dotnet 6.0.401
csharp 8.cs 115ms 5.4ms 29.3MB 80ms 3ms dotnet 6.0.401
d 1.d 127ms 0.1ms 2.0MB 120ms 0ms dmd 2.100.2
csharp 8.cs 151ms 0.5ms 25.5MB 133ms 0ms mono 6.12.0
d 2.d 294ms 1.1ms 1.9MB 280ms 0ms dmd 2.100.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 834ms 1.4ms 48.0MB 800ms 20ms ldc2 1.30.0
csharp 2.cs 1059ms 4.8ms 34.1MB 1027ms 3ms dotnet 6.0.401
d 1.d 1063ms 24ms 43.0MB 1037ms 7ms ldc2 1.30.0
csharp 1.cs 1147ms 44ms 90.0MB 1103ms 20ms dotnet 6.0.401
d 1.d 1205ms 67ms 74.8MB 1180ms 13ms dmd 2.100.2
csharp 1.cs 1272ms 76ms 86.3MB 1237ms 27ms mono 6.12.0
d 2.d 1728ms 2.7ms 49.0MB 1697ms 13ms dmd 2.100.2
csharp 2.cs 2804ms 21ms 32.4MB 2787ms 3ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 131ms 1.6ms 13.5MB 113ms 0ms ldc2 1.30.0
d 1.d 147ms 1.8ms 22.7MB 130ms 3ms dmd 2.100.2
csharp 1.cs 185ms 10ms 49.8MB 147ms 13ms dotnet 6.0.401
csharp 1.cs 186ms 1.2ms 42.7MB 160ms 17ms mono 6.12.0
d 2.d 195ms 1.0ms 15.6MB 173ms 3ms ldc2 1.30.0
csharp 2.cs 287ms 5.3ms 29.8MB 257ms 3ms dotnet 6.0.401
d 2.d 430ms 1.0ms 16.4MB 413ms 3ms dmd 2.100.2
csharp 2.cs 675ms 2.0ms 25.8MB 660ms 0ms mono 6.12.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3087ms 2.7ms 7.9MB 3123ms 27ms ldc2 1.30.0
csharp 1.cs timeout 0.0ms 0.0MB 0ms 0ms dotnet 6.0.401
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 738ms 3.7ms 8.0MB 737ms 7ms ldc2 1.30.0
csharp 1.cs 1292ms 2.9ms 77.3MB 1287ms 37ms dotnet 6.0.401
d 1.d 1431ms 3.5ms 8.8MB 1437ms 3ms dmd 2.100.2

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5.cs 3044ms 76ms 608.3MB 2890ms 253ms dotnet 7.0.100-rc.1.22431.12
csharp 5.cs 4094ms 82ms 521.4MB 3973ms 227ms dotnet 6.0.401

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5.cs 461ms 2.7ms 180.4MB 383ms 63ms dotnet 7.0.100-rc.1.22431.12
csharp 5.cs 530ms 1.3ms 89.0MB 477ms 37ms dotnet 6.0.401

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 4746ms 41ms 76.7MB 4720ms 37ms dotnet 6.0.401
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

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 1272ms 6.1ms 79.3MB 1240ms 40ms dotnet 6.0.401
d 1.d 1503ms 3.4ms 3.9MB 1493ms 0ms ldc2 1.30.0
d 1.d 2982ms 14ms 5.3MB 2983ms 0ms dmd 2.100.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 2823ms 595ms 32.5MB 4717ms 13ms dotnet 6.0.401
d 1.d 4243ms 0.9ms 4.1MB 4230ms 0ms ldc2 1.30.0
d 1.d 4429ms 23ms 4.5MB 4417ms 0ms dmd 2.100.2
csharp 3.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 672ms 2.3ms 30.3MB 1210ms 17ms dotnet 6.0.401
d 1.d 1066ms 2.2ms 3.5MB 1053ms 0ms ldc2 1.30.0
d 1.d 1110ms 2.5ms 4.2MB 1097ms 0ms dmd 2.100.2
csharp 3-m.cs 2668ms 125ms 29.8MB 5033ms 10ms mono 6.12.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 223ms 0.9ms 30.3MB 330ms 10ms dotnet 6.0.401
d 1.d 270ms 0.4ms 3.4MB 260ms 0ms ldc2 1.30.0
d 1.d 280ms 0.4ms 4.2MB 270ms 0ms dmd 2.100.2
csharp 3-m.cs 677ms 0.7ms 29.7MB 1273ms 7ms mono 6.12.0