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bench: JSPI vs asyncify A/B — harness + results

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Adds pcbnew-large-perf.spec.ts (PERF_LARGE-gated: repeated cold loads,
vme-wren/jetson opens, rAF + distinct-glcanvas-frame FPS under throttle,
wasm/JS heap checkpoints), fetchIntoMemfs + openAndWait/sampleMemory/
measureFpsDetailed perf-utils, dual 9.99+10.0 config seeding in pcbnew.html
so foreign-branch builds boot wizard-free, and the full benchmark report +
raw data under docs/features/async/migration-evidence/.

Headlines: wasm 94 vs 113 MB raw (18.6 vs 36.7 MB gzip), post-link tail
1.6 s/49 MB vs 63 s/6.1 GB per build, cold load −40 %, 27.7 MB board open
−45 %, real redraws +68 % at 4× throttle, boot heap −31 %.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR
This commit is contained in:
Viktor Vaczi 2026-08-14 11:53:06 +02:00
commit da299ed6f9
12 changed files with 707 additions and 11 deletions
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25
tests/apps/kicad/pcbnew.html
View file

@ -130,23 +130,28 @@
// Seed a minimal default config before main() so STARTWIZARD finds
// NeedsUserInput()==false and the first-run setup wizard never opens —
// same as eeschema.html / pl_editor.html.
// same as eeschema.html / pl_editor.html. Seeded for BOTH the current
// (10.0) and previous (9.99) settings versions: the perf-bench flow
// (pcbnew-large-perf.spec.ts) swaps in editor builds from other branches
// whose settings version differs, and an unseeded dir would send that
// binary into the wizard and skew every load-time number.
var seedKicadConfig = function() {
var cfgDir = '/home/kicad/.config/kicad/kicad/10.0';
FS.mkdirTree(cfgDir);
var writeIfAbsent = function(path, contents) {
try { FS.stat(path); return; } catch (e) { /* absent — seed it */ }
FS.writeFile(path, contents);
console.log('[KICAD] Seeded ' + path);
};
writeIfAbsent(cfgDir + '/kicad_common.json', JSON.stringify({
do_not_show_again: { update_check_prompt: true, data_collection_prompt: true }
}, null, 2));
writeIfAbsent(cfgDir + '/sym-lib-table', '(sym_lib_table\n (version 7)\n)\n');
writeIfAbsent(cfgDir + '/fp-lib-table', '(fp_lib_table\n (version 7)\n)\n');
writeIfAbsent(cfgDir + '/design-block-lib-table', '(design_block_lib_table\n (version 7)\n)\n');
['9.99', '10.0'].forEach(function(ver) {
var cfgDir = '/home/kicad/.config/kicad/kicad/' + ver;
FS.mkdirTree(cfgDir);
writeIfAbsent(cfgDir + '/kicad_common.json', JSON.stringify({
do_not_show_again: { update_check_prompt: true, data_collection_prompt: true }
}, null, 2));
writeIfAbsent(cfgDir + '/sym-lib-table', '(sym_lib_table\n (version 7)\n)\n');
writeIfAbsent(cfgDir + '/fp-lib-table', '(fp_lib_table\n (version 7)\n)\n');
writeIfAbsent(cfgDir + '/design-block-lib-table', '(design_block_lib_table\n (version 7)\n)\n');
});
};
var Module = {