Austin McKinley
fc750703ac
The card routes fetch each avatar from cdn.bsky.app/img/avatar/, which serves up to 1000x1000. Cards never display avatars above ~210px, but satori parses and resvg rasterizes images at intrinsic size: ~4MB of decoded native RGBA per avatar per render, up to 7 avatars per starter-pack card, and satori's 500-entry image LRU retains the oversized data URIs. Under sustained traffic the native churn and allocator fragmentation grow RSS unbounded and the service OOMs against its 2Gi limit roughly hourly (observed in prod: ~20 OOMKills/day/pod for weeks). Resize fetched avatars to 256px max with sharp before handing them to the render pipeline. Decoded pixel volume drops ~15x; rendered output is visually identical since display sizes never exceed the resize cap. libvips' operation cache is disabled since unique-image traffic never hits it. Load-tested with 74 real starter packs (6 rounds, concurrency 8): peak RSS 1441Mi -> ~1000Mi, JS heap 130-160Mi -> 45-70Mi, and late-round RSS flattens instead of compounding. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
42 lines
1.0 KiB
JSON
42 lines
1.0 KiB
JSON
{
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"name": "bskyogcard",
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"version": "0.0.0",
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"type": "module",
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"main": "src/index.ts",
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"devEngines": {
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"packageManager": {
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"name": "pnpm",
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"version": "11.10.0",
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"onFail": "warn"
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}
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},
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"scripts": {
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"start": "tsx ./src/bin.ts",
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"dev": "LOG_ENABLED=true LOG_LEVEL=debug node --watch-path ./src --import tsx ./src/bin.ts",
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"build": "tsc && cp -r src/assets dist/",
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"install-fonts": "tsx scripts/install-fonts.ts",
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"typecheck": "tsc --noEmit"
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},
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"dependencies": {
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"@atproto/api": "0.20.13",
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"@atproto/common": "^0.6.1",
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"@resvg/resvg-js": "^2.6.2",
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"express": "^4.19.2",
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"express-prom-bundle": "^7.0.0",
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"http-terminator": "^3.2.0",
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"pino": "^9.2.0",
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"prom-client": "^15.1.3",
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"react": "^19.2.6",
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"satori": "^0.26.0",
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"sharp": "^0.35.3",
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"twemoji": "^14.0.2"
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},
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"devDependencies": {
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"@types/express": "^4.17.21",
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"@types/node": "^24.12.2",
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"@types/react": "^19.2.15",
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"tsx": "^4.21.0",
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"typescript": "^6.0.3"
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}
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}
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