1What: /sys/fs/f2fs/<disk>/gc_max_sleep_time 2Date: July 2013 3Contact: "Namjae Jeon" <namjae.jeon@samsung.com> 4Description: 5 Controls the maximun sleep time for gc_thread. Time 6 is in milliseconds. 7 8What: /sys/fs/f2fs/<disk>/gc_min_sleep_time 9Date: July 2013 10Contact: "Namjae Jeon" <namjae.jeon@samsung.com> 11Description: 12 Controls the minimum sleep time for gc_thread. Time 13 is in milliseconds. 14 15What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time 16Date: July 2013 17Contact: "Namjae Jeon" <namjae.jeon@samsung.com> 18Description: 19 Controls the default sleep time for gc_thread. Time 20 is in milliseconds. 21 22What: /sys/fs/f2fs/<disk>/gc_idle 23Date: July 2013 24Contact: "Namjae Jeon" <namjae.jeon@samsung.com> 25Description: 26 Controls the victim selection policy for garbage collection. 27 28What: /sys/fs/f2fs/<disk>/reclaim_segments 29Date: October 2013 30Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 31Description: 32 Controls the issue rate of segment discard commands. 33 34What: /sys/fs/f2fs/<disk>/ipu_policy 35Date: November 2013 36Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 37Description: 38 Controls the in-place-update policy. 39 40What: /sys/fs/f2fs/<disk>/min_ipu_util 41Date: November 2013 42Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 43Description: 44 Controls the FS utilization condition for the in-place-update 45 policies. 46 47What: /sys/fs/f2fs/<disk>/max_small_discards 48Date: November 2013 49Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 50Description: 51 Controls the issue rate of small discard commands. 52 53What: /sys/fs/f2fs/<disk>/max_victim_search 54Date: January 2014 55Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 56Description: 57 Controls the number of trials to find a victim segment. 58 59What: /sys/fs/f2fs/<disk>/dir_level 60Date: March 2014 61Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 62Description: 63 Controls the directory level for large directory. 64 65What: /sys/fs/f2fs/<disk>/ram_thresh 66Date: March 2014 67Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> 68Description: 69 Controls the memory footprint used by f2fs. 70