Programming Language and compiler
Benchmarks

Javascript VS Crystal benchmarks

Current benchmark data was generated on Thu May 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
javascript 1-m.js 961ms 19ms 189.3MB 1440ms 253ms bun 1.2.11
crystal 1.cr 1235ms 5.9ms 64.2MB 1210ms 10ms crystal 1.16.2
javascript 1-m.js 1237ms 36ms 250.6MB 2120ms 157ms node 23.11.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 101ms 3.1ms 79.5MB 77ms 30ms bun 1.2.11
crystal 1.cr 107ms 1.5ms 11.0MB 93ms 0ms crystal 1.16.2
javascript 1.js 125ms 2.3ms 78.7MB 127ms 27ms node 23.11.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1514ms 13ms 19.9MB 1450ms 53ms crystal 1.16.2
javascript 1.js 1592ms 8.1ms 90.4MB 1680ms 50ms node 23.11.0
javascript 1.js 2477ms 15ms 101.1MB 2510ms 60ms bun 1.2.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 85ms 1.3ms 7.1MB 63ms 10ms crystal 1.16.2
javascript 1.js 157ms 3.2ms 71.9MB 143ms 20ms node 23.11.0
javascript 1.js 198ms 3.1ms 86.6MB 223ms 30ms bun 1.2.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 57ms 0.6ms 6.4MB 40ms 0ms crystal 1.16.2
javascript 1.js 271ms 3.9ms 63.7MB 287ms 23ms node 23.11.0
javascript 1.js 522ms 4.8ms 77.6MB 497ms 20ms bun 1.2.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 23ms 1.1ms 5.1MB 10ms 0ms crystal 1.16.2
javascript 1.js 124ms 0.7ms 61.4MB 143ms 17ms node 23.11.0
javascript 1.js 500ms 3.0ms 67.6MB 477ms 20ms bun 1.2.11

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1.9ms 0.1ms 2.9MB 0ms 0ms crystal 1.16.2
javascript 1.js 13ms 0.3ms 33.4MB 0ms 10ms bun 1.2.11
javascript 1.js 30ms 0.8ms 47.7MB 18ms 2ms node 23.11.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 333ms 15ms 76.1MB 143ms 430ms bun 1.2.11
crystal 1.cr 2259ms 358ms 211.1MB 313ms 487ms crystal 1.16.2
javascript 1.js 3165ms 250ms 189.3MB 3020ms 1490ms node 23.11.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 118ms 5.0ms 55.9MB 33ms 90ms bun 1.2.11
javascript 1.js 355ms 3.4ms 80.2MB 323ms 133ms node 23.11.0
crystal 1.cr 1184ms 99ms 54.9MB 33ms 83ms crystal 1.16.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 76ms 7.9ms 68.5MB 47ms 23ms bun 1.2.11
javascript 1.js 111ms 1.2ms 75.3MB 100ms 20ms node 23.11.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 392ms 3.5ms 236.5MB 337ms 97ms bun 1.2.11
javascript 1.js 688ms 0.9ms 202.5MB 797ms 87ms node 23.11.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 37ms 0.6ms 3.0MB 30ms 0ms crystal 1.16.2
crystal 1.cr 65ms 1.4ms 3.0MB 57ms 0ms crystal 1.16.2
javascript 2.js 307ms 2.3ms 62.8MB 297ms 13ms node 23.11.0
javascript 1.js 555ms 1.1ms 60.6MB 540ms 10ms node 23.11.0
javascript 2.js 654ms 7.6ms 121.9MB 707ms 60ms bun 1.2.11
javascript 1.js 824ms 5.1ms 111.6MB 920ms 73ms bun 1.2.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 99ms 0.9ms 3.0MB 90ms 0ms crystal 1.16.2
crystal 1.cr 187ms 2.0ms 3.0MB 180ms 0ms crystal 1.16.2
javascript 2.js 840ms 2.4ms 68.5MB 830ms 17ms node 23.11.0
javascript 1.js 1579ms 1.6ms 68.0MB 1563ms 13ms node 23.11.0
javascript 2.js 1820ms 2.5ms 122.2MB 1987ms 77ms bun 1.2.11
javascript 1.js 2446ms 103ms 112.9MB 2770ms 150ms bun 1.2.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 17ms 0.3ms 3.0MB 10ms 0ms crystal 1.16.2
crystal 1.cr 30ms 1.3ms 3.0MB 20ms 0ms crystal 1.16.2
javascript 1.js 161ms 1.1ms 58.0MB 150ms 7ms node 23.11.0
javascript 2.js 163ms 0.7ms 56.5MB 160ms 7ms node 23.11.0
javascript 1.js 317ms 2.2ms 115.6MB 353ms 77ms bun 1.2.11
javascript 2.js 354ms 4.5ms 125.5MB 377ms 50ms bun 1.2.11

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 487ms 5.6ms 135.7MB 657ms 133ms bun 1.2.11
javascript 1.js 533ms 5.3ms 130.5MB 620ms 57ms node 23.11.0
crystal 1.cr 846ms 6.4ms 64.2MB 823ms 10ms crystal 1.16.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 115ms 2.7ms 87.3MB 100ms 30ms bun 1.2.11
javascript 1.js 158ms 1.6ms 98.3MB 160ms 33ms node 23.11.0
crystal 1.cr 175ms 0.8ms 22.2MB 160ms 0ms crystal 1.16.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 343ms 0.7ms 3.3MB 330ms 0ms crystal 1.16.2
crystal 2.cr 344ms 2.9ms 3.3MB 333ms 0ms crystal 1.16.2
javascript 6.js 457ms 5.8ms 56.0MB 443ms 10ms node 23.11.0
javascript 6.js 609ms 19ms 45.5MB 600ms 3ms bun 1.2.11

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 37ms 0.5ms 3.3MB 30ms 0ms crystal 1.16.2
crystal 1.cr 38ms 1.1ms 3.3MB 30ms 0ms crystal 1.16.2
javascript 6.js 76ms 0.8ms 55.8MB 67ms 3ms node 23.11.0
javascript 6.js 80ms 2.5ms 45.6MB 73ms 3ms bun 1.2.11

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2491ms 5.7ms 59.8MB 2493ms 23ms node 23.11.0
javascript 1.js 2807ms 14ms 84.1MB 2820ms 53ms bun 1.2.11

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 663ms 0.8ms 57.9MB 673ms 7ms node 23.11.0
javascript 1.js 731ms 8.9ms 84.0MB 730ms 30ms bun 1.2.11

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1973ms 67ms 6.3MB 1947ms 17ms crystal 1.16.2
javascript 3.js 4795ms 24ms 88.0MB 4770ms 27ms node 23.11.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 457ms 15ms 5.1MB 443ms 0ms crystal 1.16.2
javascript 3.js 1040ms 4.3ms 70.7MB 1020ms 13ms node 23.11.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2187ms 17ms 115.2MB 8297ms 57ms node 23.11.0
crystal 1.cr 3764ms 9.2ms 4.6MB 3750ms 0ms crystal 1.16.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 649ms 2.4ms 112.8MB 2323ms 50ms node 23.11.0
crystal 1.cr 950ms 8.9ms 4.4MB 940ms 0ms crystal 1.16.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 241ms 2.8ms 3.9MB 230ms 0ms crystal 1.16.2
javascript 6-m.js 270ms 4.4ms 109.9MB 840ms 50ms node 23.11.0