summaryrefslogblamecommitdiff
path: root/Documentation/ABI/testing/sysfs-fs-f2fs
blob: e5200f354abfe933d3fbe69f919da2dcc0e585a6 (plain) (tree) 
b59d0bae6ca3 ^




















d2dc095f4280 ^






3bac380c9012 ^




















c1ce1b02bb25 ^







3bac380c9012 ^











cdfc41c134d4 ^

9179682591c2 ^






cdfc41c134d4 ^





bba681cbb231 ^






60b99b486b56 ^






ea1a29a0bdff ^

d0239e1bf520 ^






ea1a29a0bdff ^





1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

21
22
23
24
25
26

27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

47
48
49
50
51
52
53

54
55
56
57
58
59
60
61
62
63
64

65

66
67
68
69
70
71

72
73
74
75
76

77
78
79
80
81
82

83
84
85
86
87
88

89

90
91
92
93
94
95

96
97
98
99
100




















                                                                    





                                                                             



















                                                                              






                                                                                










                                                                        
 





                                                                  




                                                            





                                                          





                                                  
 





                                                  




                                                                   
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>/min_fsync_blocks
Date:		September 2014
Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
Description:
		 Controls the dirty page count 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.

What:		/sys/fs/f2fs/<disk>/trim_sections
Date:		February 2015
Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
Description:
		 Controls the trimming rate in batch mode.

What:		/sys/fs/f2fs/<disk>/cp_interval
Date:		October 2015
Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
Description:
		 Controls the checkpoint timing.

What:		/sys/fs/f2fs/<disk>/idle_interval
Date:		January 2016
Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
Description:
		 Controls the idle timing.

What:		/sys/fs/f2fs/<disk>/ra_nid_pages
Date:		October 2015
Contact:	"Chao Yu" <chao2.yu@samsung.com>
Description:
		 Controls the count of nid pages to be readaheaded.