Rocky
31f5937a7f
Reduce extension memory pressure and delivery races while adding richer candidates, tactile feedback, and safer two-level creative polishing.
51 lines
2.3 KiB
Markdown
51 lines
2.3 KiB
Markdown
# Keyboard memory budget — acceptance (OSGDiag)
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Phase 0 / 2 memory work is validated on a **physical iPhone** with Console
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filtering for `OSGDiag`. Unit tests and `xcodebuild` cover compile-time
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wiring; jetsam behavior is device-only.
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## Hybrid Flow (product default)
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- Foreground host is **light by default**: orphan Live Activity cleanup only —
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**no** auto `startSession` / continuous capture on appear.
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- Capture starts only on explicit Start / `osgkeyboard://startflow` / mic press.
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- Idle background capture is stopped so a parked host does not jetsam the keyboard.
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- **Do not** stack CLM + Rime + ASR in the same second after onboarding.
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- ASR warmup runs on **first mic press** (`beginUtterance`), gated by
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`HostMemoryBudget` (~260 MB RSS). `hostHeavy` is set only while heavy work
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actually runs, then cleared.
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## Console checklist
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Filter Console by process separately: host `OSGKeyboard` vs extension
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`com.osgkeyboard.ios.keyboard`. Host-only filter will never show `KVC.*`.
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| Scenario | Expect |
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|----------|--------|
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| **Force-quit host**, open Notes, switch to OSG | First `dyld.constructor`, then `KVC.init` → `viewDidLoad` → `viewDidAppear` |
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| Host foreground right after launch | `skip capture` + `postOnboardingWarmup scheduled … delay=45s` (no immediate Rime/CLM) |
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| ~45 s later, host still active | Serial `rime.installIfNeeded` then `clm.prepare` |
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| First mic press | `scheduleASRWarmup`; `hostHeavy` only while work runs |
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| Switch to typing | Single `rime.prepare` / `englishPrepare` |
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If neither `dyld.constructor` nor `KVC.init` appears after force-quitting the host,
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the extension is dying in dyld (Shared≈9.4 MB + librime) — next lever is splitting
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Rime out of Shared.
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## RSS comparison (optional)
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Record `OSGDiag` `rss=` tags for:
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1. Cold voice surface only
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2. Cold typing after prepare
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3. Host foreground + extension
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Target: typing peak below the old “voice + eager Librime construct” baseline.
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## Structural split
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- Extension links **OSGKeyboardShared** only (no Charts / StoreKit / Speech / HostSupport).
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- Host embeds **OSGKeyboardHostSupport** (ASR, CLM, CloudASR, tip/charts UI).
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- Heavy assets (`osg_pinyin.dict.yaml`, CLM bin, licenses, local-asr catalog)
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ship in the **host app** bundle; extension reads Rime from App Group after deploy.
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