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bench: jetson FPS battery — both backends saturate at 80.9 MB scale

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Parameterizes the throttle-sweep FPS battery (fpsBattery helper) and adds a
jetson-agx-thor run: asyncify raf 2.1-5.3 / distinct 0.2-0.8 vs JSPI raf
1.9-5.0 / distinct 0.1-0.7 — indistinguishable. Suspension overhead is a
per-event-loop-turn cost; at hundreds of ms of GAL work per frame it stops
discriminating. vme-wren (~27 MB) remains the discriminating size class.

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 12:07:18 +02:00
commit e652810de7
4 changed files with 53 additions and 6 deletions
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7
docs/features/async/migration-evidence/bench-data-2026-08/perf-bench-jspi.ndjson
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@ -25,3 +25,10 @@
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T09:52:24.000Z","section":"fps-vme","throttle":6,"rep":1,"rafFps":34.3,"distinctFps":3.3,"note":"glcanvas sampler re-run; when approximate"}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T09:52:30.000Z","section":"fps-vme","throttle":6,"rep":2,"rafFps":41.8,"distinctFps":5.3,"note":"glcanvas sampler re-run; when approximate"}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T09:52:30.100Z","section":"fps-vme-postmem","postFpsMem":{"wasmHeapBytes":801898496,"jsHeapBytes":64000000}}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:14.509Z","section":"fps-jetson","throttle":1,"rep":1,"rafFps":5,"distinctFps":0.7}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:21.557Z","section":"fps-jetson","throttle":1,"rep":2,"rafFps":4.1,"distinctFps":0.7}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:32.709Z","section":"fps-jetson","throttle":4,"rep":1,"rafFps":2.3,"distinctFps":0.4}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:40.639Z","section":"fps-jetson","throttle":4,"rep":2,"rafFps":1.9,"distinctFps":0.1}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:48.685Z","section":"fps-jetson","throttle":6,"rep":1,"rafFps":2.1,"distinctFps":0.1}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:55.534Z","section":"fps-jetson","throttle":6,"rep":2,"rafFps":4.3,"distinctFps":0.3}
{"arm":"jspi","sha256":"6f03e62d6d5619c3","when":"2026-08-14T10:04:55.537Z","section":"fps-jetson-postmem","postFpsMem":{"wasmHeapBytes":1730805760,"jsHeapBytes":157000000}}