Firmware
LittleFS Tail-Latency for Burst Writes: Commit + Prealloc
When you first validate a bursty image pipeline on LittleFS, it usually looks great: average write times stay low, and short tests feel done. Then you run a 6-to-12-hour soak, flash creeps toward full, and suddenly P95/P99 write latency starts spiking. Frames arrive in bursts, your producer thread blocks