| Namjae Jeon | b59d0ba | 2013-08-04 23:09:40 +0900 | [diff] [blame] | 1 | What: /sys/fs/f2fs/<disk>/gc_max_sleep_time |
| 2 | Date: July 2013 |
| 3 | Contact: "Namjae Jeon" <namjae.jeon@samsung.com> |
| 4 | Description: |
| 5 | Controls the maximun sleep time for gc_thread. Time |
| 6 | is in milliseconds. |
| 7 | |
| 8 | What: /sys/fs/f2fs/<disk>/gc_min_sleep_time |
| 9 | Date: July 2013 |
| 10 | Contact: "Namjae Jeon" <namjae.jeon@samsung.com> |
| 11 | Description: |
| 12 | Controls the minimum sleep time for gc_thread. Time |
| 13 | is in milliseconds. |
| 14 | |
| 15 | What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time |
| 16 | Date: July 2013 |
| 17 | Contact: "Namjae Jeon" <namjae.jeon@samsung.com> |
| 18 | Description: |
| 19 | Controls the default sleep time for gc_thread. Time |
| 20 | is in milliseconds. |
| Namjae Jeon | d2dc095 | 2013-08-04 23:10:15 +0900 | [diff] [blame] | 21 | |
| 22 | What: /sys/fs/f2fs/<disk>/gc_idle |
| 23 | Date: July 2013 |
| 24 | Contact: "Namjae Jeon" <namjae.jeon@samsung.com> |
| 25 | Description: |
| 26 | Controls the victim selection policy for garbage collection. |
| Jaegeuk Kim | 3bac380 | 2014-01-09 21:00:06 +0900 | [diff] [blame] | 27 | |
| 28 | What: /sys/fs/f2fs/<disk>/reclaim_segments |
| 29 | Date: October 2013 |
| 30 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 31 | Description: |
| 32 | Controls the issue rate of segment discard commands. |
| 33 | |
| 34 | What: /sys/fs/f2fs/<disk>/ipu_policy |
| 35 | Date: November 2013 |
| 36 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 37 | Description: |
| 38 | Controls the in-place-update policy. |
| 39 | |
| 40 | What: /sys/fs/f2fs/<disk>/min_ipu_util |
| 41 | Date: November 2013 |
| 42 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 43 | Description: |
| 44 | Controls the FS utilization condition for the in-place-update |
| 45 | policies. |
| 46 | |
| Jaegeuk Kim | c1ce1b0 | 2014-09-10 16:53:02 -0700 | [diff] [blame] | 47 | What: /sys/fs/f2fs/<disk>/min_fsync_blocks |
| 48 | Date: September 2014 |
| 49 | Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> |
| 50 | Description: |
| 51 | Controls the dirty page count condition for the in-place-update |
| 52 | policies. |
| 53 | |
| Jaegeuk Kim | 3bac380 | 2014-01-09 21:00:06 +0900 | [diff] [blame] | 54 | What: /sys/fs/f2fs/<disk>/max_small_discards |
| 55 | Date: November 2013 |
| 56 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 57 | Description: |
| 58 | Controls the issue rate of small discard commands. |
| 59 | |
| 60 | What: /sys/fs/f2fs/<disk>/max_victim_search |
| 61 | Date: January 2014 |
| 62 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 63 | Description: |
| 64 | Controls the number of trials to find a victim segment. |
| Jaegeuk Kim | cdfc41c | 2014-03-19 13:31:37 +0900 | [diff] [blame] | 65 | |
| Jaegeuk Kim | 9179682 | 2014-03-19 13:40:09 +0900 | [diff] [blame] | 66 | What: /sys/fs/f2fs/<disk>/dir_level |
| 67 | Date: March 2014 |
| 68 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 69 | Description: |
| 70 | Controls the directory level for large directory. |
| 71 | |
| Jaegeuk Kim | cdfc41c | 2014-03-19 13:31:37 +0900 | [diff] [blame] | 72 | What: /sys/fs/f2fs/<disk>/ram_thresh |
| 73 | Date: March 2014 |
| 74 | Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
| 75 | Description: |
| 76 | Controls the memory footprint used by f2fs. |
| Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 77 | |
| 78 | What: /sys/fs/f2fs/<disk>/trim_sections |
| 79 | Date: February 2015 |
| 80 | Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> |
| 81 | Description: |
| 82 | Controls the trimming rate in batch mode. |
| Jaegeuk Kim | 60b99b4 | 2015-10-05 14:49:57 -0700 | [diff] [blame] | 83 | |
| 84 | What: /sys/fs/f2fs/<disk>/cp_interval |
| 85 | Date: October 2015 |
| 86 | Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> |
| 87 | Description: |
| 88 | Controls the checkpoint timing. |
| Chao Yu | ea1a29a0 | 2015-10-12 17:08:48 +0800 | [diff] [blame] | 89 | |
| Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 90 | What: /sys/fs/f2fs/<disk>/idle_interval |
| 91 | Date: January 2016 |
| 92 | Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> |
| 93 | Description: |
| 94 | Controls the idle timing. |
| 95 | |
| Chao Yu | ea1a29a0 | 2015-10-12 17:08:48 +0800 | [diff] [blame] | 96 | What: /sys/fs/f2fs/<disk>/ra_nid_pages |
| 97 | Date: October 2015 |
| 98 | Contact: "Chao Yu" <chao2.yu@samsung.com> |
| 99 | Description: |
| 100 | Controls the count of nid pages to be readaheaded. |
| Chao Yu | 2304cb0 | 2016-01-18 18:32:58 +0800 | [diff] [blame] | 101 | |
| 102 | What: /sys/fs/f2fs/<disk>/dirty_nats_ratio |
| 103 | Date: January 2016 |
| 104 | Contact: "Chao Yu" <chao2.yu@samsung.com> |
| 105 | Description: |
| 106 | Controls dirty nat entries ratio threshold, if current |
| 107 | ratio exceeds configured threshold, checkpoint will |
| 108 | be triggered for flushing dirty nat entries. |
| Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 109 | |
| 110 | What: /sys/fs/f2fs/<disk>/lifetime_write_kbytes |
| 111 | Date: January 2016 |
| 112 | Contact: "Shuoran Liu" <liushuoran@huawei.com> |
| 113 | Description: |
| 114 | Shows total written kbytes issued to disk. |