Programming Language and compiler
Benchmarks

V VS C++ benchmarks

Current benchmark data was generated on Fri Aug 01 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 784ms 5.2ms 22.1MB 770ms 0ms v/clang+gc 0.4.11
v 1.v 2201ms 13ms 2086.6MB 1303ms 883ms v/clang 0.4.11

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 70ms 1.3ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
v 1.v 210ms 1.6ms 196.5MB 113ms 83ms v/clang 0.4.11

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 18.3MB 8357ms 10907ms v/clang 0.4.11
v 1.v timeout 0.0ms 18.8MB 9280ms 10013ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1-m.v 1379ms 60ms 10.0MB 2250ms 2973ms v/clang 0.4.11
v 1-m.v 1516ms 123ms 10.5MB 2680ms 3060ms v/clang+gc 0.4.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 8.3MB 4990ms 0ms v/clang+gc 0.4.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 5.0MB 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
cpp 1-im.cpp 401ms 5.2ms 3.9MB 1553ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 402ms 3.8ms 2.6MB 1547ms 0ms g++ 11.4.0
v 1.v 2224ms 12ms 1.9MB 2213ms 0ms v/clang+gc 0.4.11
v 1.v 2254ms 5.4ms 1.1MB 2247ms 0ms v/clang 0.4.11

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 39ms 1.2ms 2.5MB 127ms 0ms g++ 11.4.0
cpp 1-im.cpp 40ms 1.1ms 3.9MB 133ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 189ms 1.9ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
v 1.v 192ms 0.3ms 1.1MB 180ms 0ms v/clang 0.4.11

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 502ms 4.4ms 1.3MB 493ms 0ms v/clang 0.4.11
v 1.v 517ms 6.9ms 2.1MB 503ms 0ms v/clang+gc 0.4.11

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 53ms 0.1ms 1.3MB 43ms 0ms v/clang 0.4.11
v 1.v 56ms 1.0ms 2.1MB 50ms 0ms v/clang+gc 0.4.11

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
cpp 1.cpp 1.3ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 1.3ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 240ms 1.6ms 1.3MB 230ms 0ms v/clang 0.4.11
v 1.v 258ms 2.6ms 2.1MB 250ms 0ms v/clang+gc 0.4.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 718ms 2.5ms 1.3MB 710ms 0ms v/clang 0.4.11
v 1.v 771ms 1.0ms 2.1MB 760ms 0ms v/clang+gc 0.4.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 91ms 1.5ms 1.3MB 80ms 0ms v/clang 0.4.11
v 1.v 102ms 5.3ms 2.1MB 93ms 0ms v/clang+gc 0.4.11

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.3ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 312ms 1.0ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
v 1.v 314ms 1.2ms 1.6MB 307ms 0ms v/clang 0.4.11
cpp 1.cpp 315ms 1.4ms 2.3MB 307ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 316ms 0.7ms 1.9MB 307ms 0ms g++ 11.4.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 18ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 19ms 0.1ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 33ms 0.3ms 1.6MB 30ms 0ms v/clang 0.4.11
cpp 1.cpp 33ms 0.1ms 1.8MB 23ms 0ms g++ 11.4.0
v 1.v 33ms 0.3ms 2.3MB 30ms 0ms v/clang+gc 0.4.11
cpp 1.cpp 33ms 0.1ms 2.3MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 299ms 7.9ms 41.2MB 287ms 0ms v/clang+gc 0.4.11
v 1.v 301ms 3.8ms 40.3MB 287ms 0ms v/clang 0.4.11
v 2.v 332ms 2.5ms 6.1MB 323ms 0ms v/clang 0.4.11
v 2.v 333ms 5.6ms 6.9MB 323ms 0ms v/clang+gc 0.4.11
cpp 1.cpp 485ms 0.9ms 7.3MB 470ms 0ms g++ 11.4.0
cpp 1.cpp 531ms 2.8ms 7.8MB 520ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 2.3ms 19.0MB 50ms 0ms v/clang+gc 0.4.11
v 1.v 62ms 1.5ms 11.0MB 50ms 0ms v/clang 0.4.11
v 2.v 82ms 1.6ms 2.4MB 70ms 0ms v/clang 0.4.11
v 2.v 83ms 1.9ms 3.1MB 73ms 0ms v/clang+gc 0.4.11
cpp 1.cpp 121ms 1.9ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 131ms 1.3ms 4.1MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 3247ms 51ms 3.5MB 3227ms 3ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 813ms 36ms 3.1MB 803ms 0ms v/clang+gc 0.4.11

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 83.1MB 4980ms 3ms v/clang+gc 0.4.11

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 3509ms 13ms 26.0MB 3493ms 0ms v/clang+gc 0.4.11

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 469ms 3.9ms 3.4MB 1827ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 482ms 1.0ms 2.4MB 1887ms 0ms g++ 11.4.0
cpp 6-im.cpp 926ms 10ms 2.3MB 3637ms 0ms g++ 11.4.0
cpp 6-im.cpp 935ms 18ms 3.4MB 3647ms 0ms clang++ 14.0.0-1ubuntu1.1
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
cpp 8-m.cpp 123ms 0.7ms 3.4MB 460ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 128ms 0.6ms 2.0MB 483ms 0ms g++ 11.4.0
cpp 6-im.cpp 237ms 1.4ms 3.4MB 903ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 239ms 2.4ms 2.0MB 913ms 0ms g++ 11.4.0
v 1.v 1287ms 3.1ms 1.5MB 1277ms 0ms v/clang 0.4.11
v 1.v 1300ms 2.7ms 2.5MB 1290ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 37ms 1.4ms 3.4MB 110ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 39ms 0.4ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 6-im.cpp 64ms 0.1ms 3.4MB 227ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 66ms 0.6ms 2.1MB 237ms 0ms g++ 11.4.0
v 1.v 325ms 2.3ms 1.5MB 317ms 0ms v/clang 0.4.11
v 1.v 327ms 0.9ms 2.5MB 320ms 0ms v/clang+gc 0.4.11