hzhang
49bcde41ec
Wraps the global fs functions with a 1s TTL memo, scoped via path whitelist to plugin-discovery paths only. Workaround for upstream openclaw issue #86791: `loadPluginMetadataSnapshot()`'s cache-validity check re-runs `hashWatchedFiles` on every lookup, which walks every plugin's package.json + manifest + source via realpathSync -> ancestor lstat chain. On prod t2 with ~100 plugins, one cache-check pass is ~6 400 lstat + ~400 stat (~6-7s CPU per call). Fires on every agent turn, every loadConfig() call, every channel routing decision. This plugin doesn't fix the upstream design; it just absorbs the repeated stats within a 1s window so the same paths aren't re-statted 6× per second during a discovery walk. Verified on prod t2 (2026-05-27): - Cache hit ratio: 92.1-98.2% (stable across windows) - Idle baseline (0 turn, 0 push): 0.6-3.7% CPU (was 25%+ pre-fix) - Per-turn cost: notably reduced; previously 100% sustained per turn Path whitelist: - /openclaw/dist/extensions/ - /.openclaw/plugins/ - /node_modules/@openclaw/ - /openclaw/plugin-sdk/ All other paths pass through to original fs functions unchanged. Manifest requires `activation.onStartup: true` so openclaw register()s the plugin even though it exposes no tools/contracts (otherwise jiti caches the module without ever calling register). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
16 lines
589 B
JSON
16 lines
589 B
JSON
{
|
||
"id": "openclaw-perf-cache",
|
||
"name": "OpenClaw Perf Cache",
|
||
"version": "0.1.0",
|
||
"description": "Wraps fs.{statSync,lstatSync,realpathSync,promises.{stat,lstat,realpath}} with a short TTL memo for plugin-tree paths only. Workaround for upstream hashWatchedFiles being called on every plugin-metadata-snapshot cache-validity check (~800 statx/call × ~9 turns/hour on prod = sustained ~15-25% CPU baseline).",
|
||
"main": "index.js",
|
||
"activation": {
|
||
"onStartup": true
|
||
},
|
||
"configSchema": {
|
||
"type": "object",
|
||
"additionalProperties": false,
|
||
"properties": {}
|
||
}
|
||
}
|