Pike 8204506b3b perf(messages): persist preview warm-up; cache empty-content tails ...

On-device [PERF] capture decomposed the remaining ~1s tap latency:
each uncached conversation costs one SPI-LittleFS metadata read
(~230ms). Repeat taps still paid 2 perpetual fallbacks (empty-
content tails never got cached), and the first tap after every
boot paid all 9 (the in-memory repop was never committed to the
index).

- bump microLXMF pin c8d3156 -> 6bea23c (feat/conversation-
  preview-cache): preview_valid index flag so 'cached empty'
  differs from 'unpopulated'; bounded preview copy (the old
  strncpy read past the non-terminated content Bytes); public
  commit_index().
- refresh() re-pops empty-content tails as a valid cached
  preview and arms a one-shot deferred index commit;
  UIManager::update() drains it out-of-lock (flush_pending_
  index_commit, between drops and mark-read) so the warmed
  previews persist and the next cold boot reads them from the
  index.
- fix the [PERF] skip-log total= wrap (printed p_t_diff - p_t0,
  a uint32 underflow; total was already p_t_diff).

[PERF] instrumentation stays in this commit (temporary,
marked); it is removed before merge once the fix is validated
on-device.

2026-09-03 17:12:52 +00:00

..

test_microlxmf_telemetry_field.py

perf(messages): persist preview warm-up; cache empty-content tails

2026-09-03 17:12:52 +00:00

test_sideband_location_vectors.py

test: harden telemetry interoperability boundaries

2026-08-07 01:23:08 +00:00