Pattern-Guided File Compression with User-Experience Enhancement for Log-Structured...
summary
FPC is a concrete file-system patch for F2FS implemented on an AOSP embedded board that adds dual-mode compression with foreground/background modes: foreground coalesces random small writes into one physical block to cut write traffic and extend flash life, background packs launch-critical APK blocks to reduce decompression and speed app start. It extends inode/direct pointers, adds a block-data table and reverse mapping. Evaluation shows ~26.1% less total write traffic, 23.7% smaller executables and up to 14.8% faster app launch.
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