Tune LMK to keep larger file cache

Adjust lowmemory killer parameters so that we will keep a larger file
cache.

Change-Id: I1d5475827f6e400fa66af8bf06d9602340bfc981

patch/all/gecko/Tune-LMK-to-keep-larger-file-cache.patch

+From 31564634b81be2c4ff70d0ceeeb014599d2cc9a6 Mon Sep 17 00:00:00 2001
+From: Michael Schwartz <mschwart@codeaurora.org>
+Date: Tue, 19 Feb 2013 11:57:59 -0800
+Subject: [PATCH] Tune LMK to keep larger file cache
+
+Adjust lowmemory killer parameters so that we will keep a larger file
+cache.
+
+Change-Id: Idcee21cd43e3f9eeff749ead2adbb985824a11a4
+---
+ b2g/app/b2g.js |   12 ++++++------
+ 1 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/b2g/app/b2g.js b/b2g/app/b2g.js
+index b094e9b..6dbc5a4 100644
+--- a/b2g/app/b2g.js
++++ b/b2g/app/b2g.js
+@@ -555,17 +555,17 @@ pref("dom.ipc.processPriorityManager.temporaryPriorityLockMS", 5000);
+ // Kernel parameters for how processes are killed on low-memory.
+ pref("gonk.systemMemoryPressureRecoveryPollMS", 5000);
+ pref("hal.processPriorityManager.gonk.masterOomScoreAdjust", 0);
+-pref("hal.processPriorityManager.gonk.masterKillUnderMB", 1);
++pref("hal.processPriorityManager.gonk.masterKillUnderMB", 4);
+ pref("hal.processPriorityManager.gonk.foregroundHighOomScoreAdjust", 67);
+-pref("hal.processPriorityManager.gonk.foregroundHighKillUnderMB", 3);
++pref("hal.processPriorityManager.gonk.foregroundHighKillUnderMB", 5);
+ pref("hal.processPriorityManager.gonk.foregroundOomScoreAdjust", 134);
+-pref("hal.processPriorityManager.gonk.foregroundKillUnderMB", 4);
++pref("hal.processPriorityManager.gonk.foregroundKillUnderMB", 6);
+ pref("hal.processPriorityManager.gonk.backgroundPerceivableOomScoreAdjust", 200);
+-pref("hal.processPriorityManager.gonk.backgroundPerceivableKillUnderMB", 5);
++pref("hal.processPriorityManager.gonk.backgroundPerceivableKillUnderMB", 7);
+ pref("hal.processPriorityManager.gonk.backgroundHomescreenOomScoreAdjust", 267);
+-pref("hal.processPriorityManager.gonk.backgroundHomescreenKillUnderMB", 5);
++pref("hal.processPriorityManager.gonk.backgroundHomescreenKillUnderMB", 8);
+ pref("hal.processPriorityManager.gonk.backgroundOomScoreAdjust", 400);
+-pref("hal.processPriorityManager.gonk.backgroundKillUnderMB", 8);
++pref("hal.processPriorityManager.gonk.backgroundKillUnderMB", 20);
+ pref("hal.processPriorityManager.gonk.notifyLowMemUnderMB", 10);
+ 
+ // Niceness values (i.e., CPU priorities) for B2G processes.
+-- 
+1.7.8.3
+