Php VS Wasm benchmarks

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

CONTRIBUTIONS are WELCOME!

CPU INFO:[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.)

show numbers without parallelization

show numbers with parallelization

binarytrees

Input: 18

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
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
php	1.php	10062ms	39ms	111.8MB	10037ms	7ms	php 8.3.6

Input: 15

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
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
php	1.php	869ms	39ms	31.1MB	847ms	10ms	php 8.3.6

helloworld

Input: QwQ

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
wasm	1.rs	7.3ms	0.6ms	18.9MB	0ms	0ms	wasmtime 48.0.2
php	1.php	20ms	1.7ms	20.6MB	3ms	8ms	php 8.3.6

merkletrees

Input: 17

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
wasm	1.rs	1381ms	5.3ms	39.9MB	1357ms	7ms	wasmtime 48.0.2
php	1.php	5831ms	51ms	82.1MB	5797ms	13ms	php 8.3.6

Input: 15

lang	code	time	stddev	peak-mem mem	time(user)	time(sys)	compiler compiler/runtime
wasm	1.rs	292ms	3.2ms	21.8MB	270ms	7ms	wasmtime 48.0.2
php	1.php	1203ms	2.2ms	34.9MB	1183ms	3ms	php 8.3.6