diff options
| author |   Arve Hjønnevåg <arve@android.com> | 2009-01-14 16:54:16 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@kvm.kroah.org> | 2009-01-28 15:49:05 -0800 |
| commit | 191805ac41a63929003faa33365027d3fb924d71 (patch) | |
| tree | 78942fa488b47bd9ea6a4e2d31de738dffde5445 /drivers/staging/android | |
| parent | Staging: android: fix build error on 64bit boxes (diff) | |
| download | linux-dev-191805ac41a63929003faa33365027d3fb924d71.tar.xz linux-dev-191805ac41a63929003faa33365027d3fb924d71.zip | |
Staging: android: Add lowmemorykiller documentation.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/android')
| -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 @@ +The lowmemorykiller driver lets user-space specify a set of memory thresholds +where processes with a range of oom_adj values will get killed. Specify the +minimum oom_adj values in /sys/module/lowmemorykiller/parameters/adj and the +number of free pages in /sys/module/lowmemorykiller/parameters/minfree. Both +files take a comma separated list of numbers in ascending order. + +For example, write "0,8" to /sys/module/lowmemorykiller/parameters/adj and +"1024,4096" to /sys/module/lowmemorykiller/parameters/minfree to kill processes +with a oom_adj value of 8 or higher when the free memory drops below 4096 pages +and kill processes with a oom_adj value of 0 or higher when the free memory +drops below 1024 pages. + +The driver considers memory used for caches to be free, but if a large +percentage of the cached memory is locked this can be very inaccurate +and processes may not get killed until the normal oom killer is triggered. + |