diff options
| author | Arve Hjønnevåg <arve@android.com> | 2009-01-14 19:54:16 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@kvm.kroah.org> | 2009-01-28 18:49:05 -0500 |
| commit | 191805ac41a63929003faa33365027d3fb924d71 (patch) | |
| tree | 78942fa488b47bd9ea6a4e2d31de738dffde5445 | |
| parent | 07960058f0ce77ddc3027d3e45a5de1fb977334f (diff) | |
Staging: android: Add lowmemorykiller documentation.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/android/lowmemorykiller.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/staging/android/lowmemorykiller.txt b/drivers/staging/android/lowmemorykiller.txt new file mode 100644 index 000000000000..bd5c0c028968 --- /dev/null +++ b/drivers/staging/android/lowmemorykiller.txt | |||
| @@ -0,0 +1,16 @@ | |||
| 1 | The lowmemorykiller driver lets user-space specify a set of memory thresholds | ||
| 2 | where processes with a range of oom_adj values will get killed. Specify the | ||
| 3 | minimum oom_adj values in /sys/module/lowmemorykiller/parameters/adj and the | ||
| 4 | number of free pages in /sys/module/lowmemorykiller/parameters/minfree. Both | ||
| 5 | files take a comma separated list of numbers in ascending order. | ||
| 6 | |||
| 7 | For example, write "0,8" to /sys/module/lowmemorykiller/parameters/adj and | ||
| 8 | "1024,4096" to /sys/module/lowmemorykiller/parameters/minfree to kill processes | ||
| 9 | with a oom_adj value of 8 or higher when the free memory drops below 4096 pages | ||
| 10 | and kill processes with a oom_adj value of 0 or higher when the free memory | ||
| 11 | drops below 1024 pages. | ||
| 12 | |||
| 13 | The driver considers memory used for caches to be free, but if a large | ||
| 14 | percentage of the cached memory is locked this can be very inaccurate | ||
| 15 | and processes may not get killed until the normal oom killer is triggered. | ||
| 16 | |||