|  | What:		/sys/fs/f2fs/<disk>/gc_max_sleep_time | 
|  | Date:		July 2013 | 
|  | Contact:	"Namjae Jeon" <namjae.jeon@samsung.com> | 
|  | Description: | 
|  | Controls the maximun sleep time for gc_thread. Time | 
|  | is in milliseconds. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/gc_min_sleep_time | 
|  | Date:		July 2013 | 
|  | Contact:	"Namjae Jeon" <namjae.jeon@samsung.com> | 
|  | Description: | 
|  | Controls the minimum sleep time for gc_thread. Time | 
|  | is in milliseconds. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/gc_no_gc_sleep_time | 
|  | Date:		July 2013 | 
|  | Contact:	"Namjae Jeon" <namjae.jeon@samsung.com> | 
|  | Description: | 
|  | Controls the default sleep time for gc_thread. Time | 
|  | is in milliseconds. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/gc_idle | 
|  | Date:		July 2013 | 
|  | Contact:	"Namjae Jeon" <namjae.jeon@samsung.com> | 
|  | Description: | 
|  | Controls the victim selection policy for garbage collection. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/reclaim_segments | 
|  | Date:		October 2013 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the issue rate of segment discard commands. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/ipu_policy | 
|  | Date:		November 2013 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the in-place-update policy. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/min_ipu_util | 
|  | Date:		November 2013 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the FS utilization condition for the in-place-update | 
|  | policies. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/max_small_discards | 
|  | Date:		November 2013 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the issue rate of small discard commands. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/max_victim_search | 
|  | Date:		January 2014 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the number of trials to find a victim segment. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/dir_level | 
|  | Date:		March 2014 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the directory level for large directory. | 
|  |  | 
|  | What:		/sys/fs/f2fs/<disk>/ram_thresh | 
|  | Date:		March 2014 | 
|  | Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com> | 
|  | Description: | 
|  | Controls the memory footprint used by f2fs. |