6fe8c86708
The ~8s-burst placeholder is replaced by the measured warm :gp (19.1s = 10.3s splice + 5.9s push leg): K roughly doubles to ~0.6 mAh/sync and its mix shifts from radio to SD/CPU, but the splice reruns per sync so the 1/T shape, the 5-10 min knee, and the 10-min default all hold. TLS session resumption (2.4s vs 4.0s connect) and the run-8 keep-alive death strengthen teardown-between-syncs; clean ticks are radio-free via the dirty journal; :gl noted as outbound-only. ASCII curve replaced with a mermaid xychart.
Tradeoff curves
Where a design knob has a cost that bends — energy, latency, memory — against an interval or size, the curve and its knee live here, so the chosen default is traceable to a shape rather than a guess.
Docs index:
../README.md. Project overview:../../README.md.
| Curve | What it decides |
|---|---|
wifi-auto-sync.md |
auto_sync interval vs Wi-Fi energy (a 1/T hyperbola) — why the default is 10 min and opportunistic, not a wall-clock timer. |
epd-refresh-latency.md |
E-ink refresh latency vs rows driven — the full / full-area-partial / windowed-Y cost model behind typing responsiveness and the boot splash→editor swap. |
sync-commit-staging.md |
Commit-staging strategy vs working-tree size — RESOLVED: every index-based path is O(N_tree) and fails on the real repo (611 s / OOM); the O(depth) TreeBuilder splice is benched at ~2–2.8 s and ships. Holds the full measurement trail plus the firmware plumbing plan (merged from the retired handoff note). |