diff options
Diffstat (limited to 'Documentation/sysctl')
| -rw-r--r-- | Documentation/sysctl/vm.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 6c7d18c53f84..56dd29b97a91 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt | |||
| @@ -19,6 +19,7 @@ files can be found in mm/swap.c. | |||
| 19 | Currently, these files are in /proc/sys/vm: | 19 | Currently, these files are in /proc/sys/vm: |
| 20 | 20 | ||
| 21 | - block_dump | 21 | - block_dump |
| 22 | - compact_memory | ||
| 22 | - dirty_background_bytes | 23 | - dirty_background_bytes |
| 23 | - dirty_background_ratio | 24 | - dirty_background_ratio |
| 24 | - dirty_bytes | 25 | - dirty_bytes |
| @@ -64,6 +65,15 @@ information on block I/O debugging is in Documentation/laptops/laptop-mode.txt. | |||
| 64 | 65 | ||
| 65 | ============================================================== | 66 | ============================================================== |
| 66 | 67 | ||
| 68 | compact_memory | ||
| 69 | |||
| 70 | Available only when CONFIG_COMPACTION is set. When 1 is written to the file, | ||
| 71 | all zones are compacted such that free memory is available in contiguous | ||
| 72 | blocks where possible. This can be important for example in the allocation of | ||
| 73 | huge pages although processes will also directly compact memory as required. | ||
| 74 | |||
| 75 | ============================================================== | ||
| 76 | |||
| 67 | dirty_background_bytes | 77 | dirty_background_bytes |
| 68 | 78 | ||
| 69 | Contains the amount of dirty memory at which the pdflush background writeback | 79 | Contains the amount of dirty memory at which the pdflush background writeback |