Add a sqlite3 benchmark#308
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fitzgen merged 2 commits intobytecodealliance:mainfrom Apr 28, 2026
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FWIW, the "benchmarks" CI job is failing on |
posborne
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A WebAssembly build of SQLite's official `speedtest1.c` benchmark program, ported from [JetStream 3](https://github.com/WebKit/JetStream/tree/main/sqlite3) for use with Sightglass. Quoting from [its description](https://sqlite.org/cpu.html): > This program strives to exercise the SQLite library in a way that is typical > of real-world applications. Of course, every application is different, and so > no test program can exactly mirror the behavior of all applications. Since SQLite is a very widely used database and provides an official and popular upstream WebAssembly port, this is a realistic, larger WebAssembly program. Originally built from SQLite 3.48.0 with Emscripten SDK 3.1.73. The original JetStream 3 module was compiled by Emscripten and paired with a JavaScript driver. Since sightglass does not use JavaScript, the module was modified to: - Remove Emscripten `"env"` imports and replace them with stubs (except `emscripten_resize_heap`, which delegates to `memory.grow`). - Add `"bench" "start"` and `"bench" "end"` imports for Sightglass timing. - Add a `"_start"` export that calls `__wasm_call_ctors`, `bench.start`, `wasm_main`, and `bench.end`. - Execute the sqlite3 benchmarks with `szTest=25` instead of `szTest=100`, bringing a default run under Sightglass from ~4 minutes to ~1 minute.
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A WebAssembly build of SQLite's official
speedtest1.cbenchmark program, ported from JetStream 3 for use with Sightglass.Quoting from its description:
Since SQLite is a very widely used database and provides an official and popular upstream WebAssembly port, this is a realistic, larger WebAssembly program.
Originally built from SQLite 3.48.0 with Emscripten SDK 3.1.73.
The original JetStream 3 module was compiled by Emscripten and paired with a JavaScript driver. Since sightglass does not use JavaScript, the module was modified to:
"env"imports and replace them with stubs (exceptemscripten_resize_heap, which delegates tomemory.grow)."bench" "start"and"bench" "end"imports for Sightglass timing."_start"export that calls__wasm_call_ctors,bench.start,wasm_main, andbench.end.szTest=25instead ofszTest=100, bringing a default run under Sightglass from ~4 minutes to ~1 minute.