Programming Language and compiler
Benchmarks

Crystal VS V benchmarks

Current benchmark data was generated on Tue Mar 25 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 826ms 7.1ms 22.1MB 813ms 0ms v/clang+gc 0.4.10
crystal 1.cr 1276ms 8.3ms 64.0MB 1257ms 0ms crystal 1.15.1
v 1.v 2249ms 23ms 2086.6MB 1327ms 910ms v/clang 0.4.10

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 72ms 1.3ms 4.6MB 60ms 0ms v/clang+gc 0.4.10
crystal 1.cr 105ms 2.2ms 10.9MB 90ms 0ms crystal 1.15.1
v 1.v 212ms 3.0ms 197.1MB 120ms 77ms v/clang 0.4.10

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1381ms 34ms 19.6MB 1307ms 57ms crystal 1.15.1
v 1.v timeout 0.0ms 17.9MB 8577ms 10773ms v/clang 0.4.10
v 1.v timeout 0.0ms 18.4MB 8913ms 10293ms v/clang+gc 0.4.10

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 71ms 3.7ms 7.1MB 50ms 10ms crystal 1.15.1
v 1-m.v 1347ms 37ms 9.6MB 2260ms 2830ms v/clang 0.4.10
v 1-m.v 1382ms 26ms 10.4MB 2263ms 2907ms v/clang+gc 0.4.10

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 59ms 1.7ms 6.4MB 43ms 0ms crystal 1.15.1
v 1.v timeout 0.0ms 8.5MB 4990ms 0ms v/clang+gc 0.4.10

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 22ms 0.7ms 5.1MB 10ms 0ms crystal 1.15.1
v 1.v timeout 0.0ms 4.8MB 4990ms 0ms v/clang+gc 0.4.10

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2201ms 3.6ms 1.9MB 2193ms 0ms v/clang+gc 0.4.10
v 1.v 2314ms 95ms 1.1MB 2303ms 0ms v/clang 0.4.10
crystal 1.cr 2508ms 6.1ms 2.8MB 2493ms 0ms crystal 1.15.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 188ms 1.5ms 1.9MB 180ms 0ms v/clang+gc 0.4.10
v 1.v 193ms 2.3ms 1.1MB 180ms 0ms v/clang 0.4.10
crystal 1.cr 207ms 1.2ms 2.8MB 200ms 0ms crystal 1.15.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 498ms 0.7ms 1.3MB 490ms 0ms v/clang 0.4.10
v 1.v 529ms 10ms 2.1MB 517ms 0ms v/clang+gc 0.4.10
crystal 2.cr 555ms 3.0ms 3.4MB 450ms 90ms crystal 1.15.1
crystal 1.cr 694ms 0.6ms 14.4MB 573ms 107ms crystal 1.15.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 53ms 1.2ms 1.3MB 47ms 0ms v/clang 0.4.10
v 1.v 56ms 0.4ms 2.1MB 50ms 0ms v/clang+gc 0.4.10
crystal 2.cr 59ms 0.3ms 3.4MB 40ms 7ms crystal 1.15.1
crystal 1.cr 75ms 1.4ms 4.8MB 57ms 7ms crystal 1.15.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.2ms 0.3ms 1.4MB 0ms 0ms v/clang 0.4.10
v 1.v 1.4ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.10
crystal 1.cr 2.0ms 0.5ms 2.8MB 0ms 0ms crystal 1.15.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1690ms 21ms 287.8MB 323ms 510ms crystal 1.15.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1190ms 102ms 59.1MB 37ms 83ms crystal 1.15.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 37ms 1.3ms 2.9MB 30ms 0ms crystal 1.15.1
crystal 1.cr 65ms 2.1ms 2.9MB 57ms 0ms crystal 1.15.1
v 1.v 249ms 3.9ms 1.3MB 240ms 0ms v/clang 0.4.10
v 1.v 262ms 3.5ms 2.1MB 253ms 0ms v/clang+gc 0.4.10

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 103ms 1.4ms 2.9MB 90ms 0ms crystal 1.15.1
crystal 1.cr 186ms 1.8ms 2.9MB 177ms 0ms crystal 1.15.1
v 1.v 722ms 7.3ms 1.3MB 713ms 0ms v/clang 0.4.10
v 1.v 784ms 25ms 2.1MB 773ms 0ms v/clang+gc 0.4.10

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 17ms 0.5ms 2.9MB 10ms 0ms crystal 1.15.1
crystal 1.cr 31ms 1.7ms 2.9MB 20ms 0ms crystal 1.15.1
v 1.v 91ms 2.5ms 1.3MB 83ms 0ms v/clang 0.4.10
v 1.v 101ms 1.1ms 2.1MB 90ms 0ms v/clang+gc 0.4.10

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 313ms 0.7ms 9.2MB 300ms 0ms crystal 1.15.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 18ms 0.5ms 6.3MB 10ms 0ms crystal 1.15.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 864ms 6.5ms 64.0MB 843ms 10ms crystal 1.15.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 157ms 3.4ms 22.1MB 143ms 0ms crystal 1.15.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.6ms 1.6MB 303ms 0ms v/clang 0.4.10
v 1.v 313ms 2.4ms 2.3MB 303ms 0ms v/clang+gc 0.4.10
crystal 2.cr 344ms 4.8ms 3.3MB 333ms 0ms crystal 1.15.1
crystal 1.cr 345ms 2.6ms 3.3MB 333ms 0ms crystal 1.15.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 34ms 0.4ms 1.6MB 27ms 0ms v/clang 0.4.10
v 1.v 34ms 0.5ms 2.3MB 30ms 0ms v/clang+gc 0.4.10
crystal 1.cr 38ms 1.5ms 3.1MB 30ms 0ms crystal 1.15.1
crystal 2.cr 38ms 0.5ms 3.1MB 30ms 0ms crystal 1.15.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 301ms 3.6ms 8.1MB 290ms 0ms crystal 1.15.1
v 1.v 332ms 8.5ms 41.1MB 317ms 0ms v/clang+gc 0.4.10
v 2.v 334ms 2.0ms 6.9MB 323ms 0ms v/clang+gc 0.4.10
v 2.v 334ms 5.6ms 6.1MB 323ms 0ms v/clang 0.4.10
v 1.v 400ms 3.8ms 40.2MB 380ms 0ms v/clang 0.4.10
crystal 1.cr 440ms 6.5ms 42.3MB 430ms 0ms crystal 1.15.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 63ms 4.4ms 11.0MB 53ms 0ms v/clang 0.4.10
v 1.v 67ms 1.4ms 11.7MB 60ms 0ms v/clang+gc 0.4.10
crystal 2.cr 77ms 2.1ms 4.4MB 67ms 0ms crystal 1.15.1
v 2.v 82ms 0.6ms 2.4MB 70ms 0ms v/clang 0.4.10
v 2.v 83ms 1.3ms 3.1MB 73ms 0ms v/clang+gc 0.4.10
crystal 1.cr 91ms 3.7ms 13.0MB 80ms 0ms crystal 1.15.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1886ms 42ms 6.2MB 1853ms 17ms crystal 1.15.1
v 2.v 3155ms 20ms 3.3MB 3133ms 7ms v/clang+gc 0.4.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 479ms 12ms 5.0MB 463ms 0ms crystal 1.15.1
v 2.v 782ms 3.8ms 2.6MB 773ms 0ms v/clang+gc 0.4.10

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3792ms 11ms 4.5MB 3783ms 0ms crystal 1.15.1
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.10
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 952ms 1.2ms 4.3MB 940ms 0ms crystal 1.15.1
v 1.v 1286ms 3.9ms 1.5MB 1277ms 0ms v/clang 0.4.10
v 1.v 1332ms 3.9ms 2.5MB 1323ms 0ms v/clang+gc 0.4.10

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 248ms 11ms 3.8MB 237ms 0ms crystal 1.15.1
v 1.v 325ms 1.8ms 1.5MB 317ms 0ms v/clang 0.4.10
v 1.v 336ms 4.5ms 2.5MB 323ms 0ms v/clang+gc 0.4.10