{"dirty_pages":{"background_threshold":53754,"current_nr_dirty":42,"dirty_threshold":107640,"nr_writeback":0,"pressure_pct":0.04,"write_stall_risk":"ZERO_WRITE_STALL_RISK"},"status":"OPTIMAL","timestamp":"2026-10-27T23:18:55Z","tunables":{"dirty_background_ratio":{"description":"Kernel flusher wakeup threshold as % of system memory","optimal":true,"target":"<= 10","value":10},"dirty_ratio":{"description":"Max dirty memory % before application threads block on writeback","optimal":true,"target":"<= 20","value":20},"swappiness":{"description":"Aggressiveness of memory swapping vs page cache retention","optimal":true,"target":"<= 20","value":10},"vfs_cache_pressure":{"description":"Tendency of the kernel to reclaim directory and inode cache memory","optimal":true,"target":"50-100","value":50}}}