perf: lazy JSON bridge for Native→Kotlin callKotlin (OHOS + iOS) - #1599
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ruifanyuan wants to merge 2 commits into
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perf: lazy JSON bridge for Native→Kotlin callKotlin (OHOS + iOS)#1599ruifanyuan wants to merge 2 commits into
ruifanyuan wants to merge 2 commits into
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Keep instanceId cache (~10% LAYOUT) and KSP OHOS entry hot path (~2× small LAYOUT). Pass Map/Array as NATIVE_JSON (shared_ptr cJSON) so unread payloads stay flat; JSONObject stays final via LazyCJsonMap. Module registry is shared in libkuikly.so; CallKotlinPerfTestModule is Debug/NDEBUG-only. Device bench (LNG0223C13000049), cpp_callKotlin unread: - LAYOUT: ~35µs - FIRE string vs lazy map: 1KB 188→61µs (~3×); 64KB 7.8ms→61µs (~128×); 3MB 368ms→72µs (~5100×) Co-authored-by: Cursor <cursoragent@cursor.com>
iOS: pass NSDictionary through ObjC; wrap at KSP entry via toKotlinBridgeArg (LazyNSDictionaryMap) before BridgeManager — same shape as OHOS toAny. OHOS: Create pageData and Update/SendEvent pass structured Map/Record (NATIVE_JSON) instead of JSON.stringify. Bench (unread cpp_callKotlin): - OHOS device Fire string→lazy: 1KB 190→68µs; 64KB 7.9ms→61µs; 3MB 354ms→61µs - iOS sim Fire string→lazy: 1KB ~19→1.3µs; 64KB ~1ms→1.3µs; 3MB ~57ms→1.3µs DEBUG CallKotlinPerf harness covers fire/update/callback on both platforms. Co-authored-by: Cursor <cursoragent@cursor.com>
ruifanyuan
requested review from
elixxli,
etkmao,
iPel,
luoyibu,
zealotchen0 and
zenipchen
as code owners
August 5, 2026 03:14
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Summary
callKotlinfor large/unread JSON by passing structured payloads instead of stringify + parse.NATIVE_JSON(shared_ptr cJSON) →LazyCJsonMapinside finalJSONObject; Create pageData and Update/SendEvent use the same path (noJSON.stringify/toString()).NSDictionarythrough ObjC; wrap at KSP entry viatoKotlinBridgeArg→LazyNSDictionaryMapbeforeBridgeManager(parallel to OHOStoAny).CallKotlinPerfharness + demo page for Fire/Update/Callback string vs lazy.Bench (unread
cpp_callKotlin)OHOS device — Fire string → lazy:
iOS simulator — Fire string → lazy:
Test plan
CallKotlinPerfPage→ hilogCallKotlinPerfshowsNESTED_LIFECYCLE/PHASES_CPP/DONECallKotlinPerfcompletes full fire/update/callback sweepCallKotlinPerfTestModuleomitted (NDEBUG/ non-DEBUG)