From: Arve Hjønnevåg Date: Thu, 15 Jan 2009 00:54:16 +0000 (-0800) Subject: Staging: android: Add lowmemorykiller documentation. X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=191805ac41a63929003faa33365027d3fb924d71;p=linux-2.6-omap-h63xx.git Staging: android: Add lowmemorykiller documentation. Signed-off-by: Arve Hjønnevåg Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/android/lowmemorykiller.txt b/drivers/staging/android/lowmemorykiller.txt new file mode 100644 index 00000000000..bd5c0c02896 --- /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. +