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Docs (P15): present-wait analysis uses the existing traces.

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swung0x48
2026-10-09 21:58:06 -04:00
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docs/Disaggregated/notes/perf-p15/HANDOFF.md
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@@ -149,7 +149,7 @@ The plan and its measurements are in [PLAN-P15.md](PLAN-P15.md); the audit is in
- Open: whether a static TLS model (initial-exec) on the hot variables can remove the 0.05 ms in a dlopen'ed lib on
bionic; and what actually makes the api29 Magma build faster (not isolated).
- The shipped build stays API 26. The FCL-embedded 29 copy still needs FCL's own minSdk switch.
5b. QUEUED 2026-10-09, after the TLS agent releases the device: Perfetto trace of the present wait.
5b. IN PROGRESS 2026-10-09, offline (no new capture): present-wait timeline from the existing P15 traces (fbm, c4, c1c2: sched, kgsl submit/retire, gfx atrace, SF frametimeline). Confirm against the TLS agent's base-vs-change Perfetto traces on e70925d3.
- Finding (egc profiles, e70925d3, cpuhunt, monolith): render-thread on-CPU + off-CPU = frame time.
| | Espryt | Magma |
|---|---|---|