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Date: Wed, 14 Jan 2009 16:54:16 -0800 From: Arve Hjønnevåg <arve@...roid.com> To: greg@...ah.com Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, Pavel Machek <pavel@...e.cz>, Brian Swetland <swetland@...gle.com>, San Mehat <san@...roid.com>, Robert Love <rlove@...gle.com>, linux-kernel@...r.kernel.org, Arve Hjønnevåg <arve@...roid.com> Subject: [PATCH] Staging: android: Add lowmemorykiller documentation. Signed-off-by: Arve Hjønnevåg <arve@...roid.com> --- drivers/staging/android/lowmemorykiller.txt | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) create mode 100644 drivers/staging/android/lowmemorykiller.txt diff --git a/drivers/staging/android/lowmemorykiller.txt b/drivers/staging/android/lowmemorykiller.txt new file mode 100644 index 0000000..bd5c0c0 --- /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. + -- 1.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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