Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

V VS Wasm benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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 1604ms 9.3ms 101.7MB 1573ms 13ms v/clang+gc 0.5.2
wasm 5.rs 2706ms 23ms 31.8MB 2683ms 7ms wasmtime 48.0.2
wasm 4.rs 2716ms 16ms 31.9MB 2693ms 10ms wasmtime 48.0.2
wasm 3.rs 2830ms 30ms 47.9MB 2800ms 13ms wasmtime 48.0.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 138ms 4.5ms 19.4MB 120ms 0ms v/clang+gc 0.5.2
wasm 4.rs 256ms 0.8ms 20.1MB 240ms 0ms wasmtime 48.0.2
wasm 5.rs 258ms 2.6ms 18.1MB 240ms 0ms wasmtime 48.0.2
wasm 3.rs 288ms 29ms 20.0MB 270ms 3ms wasmtime 48.0.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1617ms 13ms 20.5MB 1603ms 0ms wasmtime 48.0.2
v 1-m.v 69596ms 1194ms 82.3MB 126717ms 147063ms v/clang+gc 0.5.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 423ms 73ms 19.6MB 103ms 3ms wasmtime 48.0.2
v 1-m.v 3419ms 88ms 17.6MB 6353ms 6917ms v/clang+gc 0.5.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 547ms 6.8ms 17.7MB 533ms 0ms wasmtime 48.0.2
v 1.v 6596ms 54ms 30.9MB 6567ms 10ms v/clang+gc 0.5.2

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 147ms 1.6ms 17.1MB 127ms 7ms wasmtime 48.0.2
v 1.v 1175ms 26ms 13.5MB 1157ms 3ms v/clang+gc 0.5.2

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2835ms 11ms 2.4MB 2820ms 0ms v/clang+gc 0.5.2
wasm 1.rs 4252ms 11ms 16.5MB 4240ms 0ms wasmtime 48.0.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 248ms 15ms 2.4MB 237ms 0ms v/clang+gc 0.5.2
wasm 1.rs 365ms 2.9ms 16.8MB 350ms 0ms wasmtime 48.0.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 304ms 0.8ms 18.4MB 283ms 7ms wasmtime 48.0.2
v 1.v 877ms 9.0ms 2.5MB 663ms 200ms v/clang+gc 0.5.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 39ms 0.7ms 16.6MB 27ms 0ms wasmtime 48.0.2
v 1.v 92ms 2.6ms 2.5MB 60ms 13ms v/clang+gc 0.5.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2.1ms 0.6ms 2.3MB 0ms 0ms v/clang+gc 0.5.2
wasm 1.rs 7.3ms 0.6ms 18.9MB 0ms 0ms wasmtime 48.0.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 132ms 4.4ms 14.8MB 120ms 0ms wasmtime 48.0.2
v 1.v 11561ms 129ms 3.5MB 11530ms 10ms v/clang+gc 0.5.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 382ms 18ms 14.6MB 367ms 0ms wasmtime 48.0.2
v 1.v 35304ms 114ms 3.5MB 35217ms 63ms v/clang+gc 0.5.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 76ms 11ms 14.3MB 67ms 0ms wasmtime 48.0.2
v 1.v 788ms 3.2ms 2.9MB 773ms 0ms v/clang+gc 0.5.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 569ms 4.3ms 2.4MB 557ms 0ms v/clang+gc 0.5.2
wasm 1.rs 621ms 3.5ms 16.6MB 603ms 0ms wasmtime 48.0.2
wasm 2.rs 622ms 5.9ms 16.5MB 610ms 0ms wasmtime 48.0.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 1.7ms 2.4MB 50ms 0ms v/clang+gc 0.5.2
wasm 1.rs 72ms 1.4ms 16.4MB 60ms 0ms wasmtime 48.0.2
wasm 2.rs 74ms 5.5ms 16.7MB 63ms 0ms wasmtime 48.0.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 731ms 5.1ms 22.5MB 717ms 0ms wasmtime 48.0.2
wasm 1.rs 1119ms 2.6ms 57.6MB 1100ms 0ms wasmtime 48.0.2
v 1.v 1130ms 3.7ms 61.2MB 1107ms 3ms v/clang+gc 0.5.2
v 2.v 1606ms 14ms 7.2MB 1593ms 0ms v/clang+gc 0.5.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 151ms 0.5ms 17.2MB 140ms 0ms wasmtime 48.0.2
v 1.v 214ms 4.8ms 19.5MB 197ms 0ms v/clang+gc 0.5.2
wasm 1.rs 215ms 1.1ms 27.5MB 197ms 0ms wasmtime 48.0.2
v 2.v 357ms 2.7ms 3.7MB 343ms 0ms v/clang+gc 0.5.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2611ms 32ms 17.4MB 2593ms 3ms wasmtime 48.0.2
v 2.v 10837ms 116ms 4.6MB 10803ms 20ms v/clang+gc 0.5.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 616ms 1.8ms 18.2MB 603ms 0ms wasmtime 48.0.2
v 2.v 2606ms 68ms 4.6MB 2590ms 0ms v/clang+gc 0.5.2

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 101272ms 2126ms 211.8MB 101230ms 17ms v/clang+gc 0.5.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 10028ms 223ms 26.2MB 10013ms 3ms v/clang+gc 0.5.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 7.rs 5534ms 4.6ms 16.3MB 5520ms 0ms wasmtime 48.0.2
wasm 2.rs 11040ms 32ms 16.8MB 11030ms 3ms wasmtime 48.0.2
v 1.v 11048ms 5.2ms 3.2MB 11037ms 0ms v/clang+gc 0.5.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 7.rs 1395ms 1.6ms 16.7MB 1383ms 0ms wasmtime 48.0.2
v 1.v 2763ms 3.5ms 3.0MB 2753ms 0ms v/clang+gc 0.5.2
wasm 2.rs 2771ms 8.4ms 16.7MB 2760ms 0ms wasmtime 48.0.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 7.rs 358ms 2.2ms 18.7MB 343ms 0ms wasmtime 48.0.2
v 1.v 697ms 6.9ms 2.7MB 683ms 0ms v/clang+gc 0.5.2
wasm 2.rs 702ms 1.7ms 14.8MB 690ms 0ms wasmtime 48.0.2