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Firefox OS/Performance/Memory/OOMKiller: Difference between revisions
Firefox OS/Performance/Memory/OOMKiller (view source)
Revision as of 19:52, 29 April 2014
, 29 April 2014→Android Low Memory Killer
(Created page with "== Android Low Memory Killer == == Linux OOM Killer ==") |
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== Android Low Memory Killer == | == Android Low Memory Killer == | ||
* Executes when kernel attempts to “shrink” resources | |||
* Kills process with highest “oom_adjust” value regardless of size | |||
* Attempts to use LRU to kill least relevant app | |||
* Code here: <code>./kernel/drivers/staging/android/lowmemorykiller.c</code> | |||
* Will see the following in <code>adb shell dmesg</code>: | |||
<code><pre> | |||
[ 793.376328] select 378 (Usage), adj 10, size 5552, to kill | |||
[ 793.376354] send sigkill to 378 (Usage), adj 10, size 5552 | |||
[ 794.313554] select 409 (Homescreen), adj 8, size 4065, to kill | |||
[ 794.313576] select 500 ((Preallocated a), adj 10, size 2787, to kill | |||
[ 794.313591] send sigkill to 500 ((Preallocated a), adj 10, size 2787 | |||
[ 796.038379] select 409 (Homescreen), adj 8, size 4213, to kill | |||
[ 796.038398] send sigkill to 409 (Homescreen), adj 8, size 4213 | |||
</pre></code> | |||
== Linux OOM Killer == | == Linux OOM Killer == | ||