From e55232fbacd5e2c46b3c41333178c679900f870a Mon Sep 17 00:00:00 2001
From: Martin Liu <liumartin@google.com>
Date: Tue, 21 Nov 2023 10:24:32 +0000
Subject: [PATCH] adjust PCP high level

We have observed more reclaiming activities as upstream
has changed how PCP high is calculated since 5.15 kernel.
Re-align the level back to 5.10 first so we can monitor
how it impacts the MM metrics.

Bug: 309409009
Test: boot
Change-Id: I7ac1eb88a8dae7c823330a2c75aec9547bd5c427
Signed-off-by: Martin Liu <liumartin@google.com>
---
 conf/init.zuma.rc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/conf/init.zuma.rc b/conf/init.zuma.rc
index a95044bc..437b9b08 100644
--- a/conf/init.zuma.rc
+++ b/conf/init.zuma.rc
@@ -119,6 +119,9 @@ on init
     write /sys/block/zram0/comp_algorithm lz77eh
     write /proc/sys/vm/page-cluster 0
 
+    # adjust PCP high level
+    write /proc/sys/vm/percpu_pagelist_high_fraction 430
+
     # Some user code relies on ro.boot.hardware.revision
     setprop ro.boot.hardware.revision ${ro.revision}