https://benjdd.com/loops/ (from https://x.com/BenjDicken/status/1857449788893286484) in C and Go, Go version built natively and as WASM

summary.md

Summary:

Lang	Target	Wall time	CPU util	MaxRSS	obs
C	native build	0:01.0s	99%	1.37MiB	baseline
Go	native build	0:05.48	99%	1.75MiB
Go	wasm	0:05.50	99%	54.00MiB	ran using wasmer
Go	wasm	0:05.64	99%	24.61MiB	ran using wasmtime

z_cli_output.md

BUILD: build-c-native/main
+ gcc -O1 -o build-c-native/main main.c
BUILD: build-go-native/main
+ go build -o build-go-native/main main.go
BUILD: build-go-wasm/main.wasm
+ env GOOS=wasip1 GOARCH=wasm go build -o build-go-wasm/main.wasm main.go

RUN: run-c-native/main
+ time ./build-c-native/main
1.09user 0.00system 0:01.09elapsed 99%CPU (0avgtext+0avgdata 1408maxresident)k
0inputs+0outputs (0major+109minor)pagefaults 0swaps

RUN: run-go-native/main
+ time ./build-go-native/main
5.48user 0.02system 0:05.48elapsed 99%CPU (0avgtext+0avgdata 1792maxresident)k
0inputs+0outputs (0major+233minor)pagefaults 0swaps

RUN: run-go-wasm/main.wasm with wasmer
+ cd build-go-wasm/
+ time wasmer run ./main.wasm
5.45user 0.04system 0:05.50elapsed 99%CPU (0avgtext+0avgdata 55296maxresident)k
0inputs+0outputs (0major+7460minor)pagefaults 0swaps

RUN: run-go-wasm/main.wasm with wasmtime
+ cd build-go-wasm/
+ time wasmtime run ./main.wasm
5.61user 0.02system 0:05.64elapsed 99%CPU (0avgtext+0avgdata 25204maxresident)k
0inputs+8outputs (0major+5796minor)pagefaults 0swaps