From 9a20a9faee2fe0ecd5b37682b79fe240a59b48de Mon Sep 17 00:00:00 2001
From: Lisa Liu <liulisa@google.com>
Date: Fri, 9 Jul 2021 10:19:12 +0800
Subject: [PATCH] gs101: tune vendor_sched parameters for boot time

Set uclamp_min and prefer_idle to sys_group to improve 2nd init
stage boot time performance.
* original
boot_progress_start_avg: 4832.3
* with tuning
boot_progress_start_avg: 4028.75

Bug: 193192017
Test: boot test
Change-Id: I8ebd52fddceadbee22e9a8c75969d52047b2acfc
---
 conf/init.gs101.rc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/conf/init.gs101.rc b/conf/init.gs101.rc
index 9e6880d6..60a76006 100644
--- a/conf/init.gs101.rc
+++ b/conf/init.gs101.rc
@@ -125,6 +125,8 @@ on init
     write /sys/kernel/vendor_sched/ta_prefer_idle 1
     write /sys/kernel/vendor_sched/fg_uclamp_min 308
     write /sys/kernel/vendor_sched/fg_prefer_idle 1
+    write /sys/kernel/vendor_sched/sys_uclamp_min 308
+    write /sys/kernel/vendor_sched/sys_prefer_idle 1
 
     # governor setting
     write /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor sched_pixel
@@ -353,6 +355,7 @@ on post-fs-data
 on zygote-start
     # For PixelLogger configuration file.
     chmod 0771 /data/vendor/wifi
+    write /sys/kernel/vendor_sched/sys_uclamp_min 0
 
 on post-fs-data
     # Create the directories used by the Wireless subsystem
@@ -678,6 +681,7 @@ on property:sys.boot_completed=1
     write /sys/kernel/vendor_sched/ta_uclamp_min 1
     write /sys/kernel/vendor_sched/fg_uclamp_min 0
     write /sys/kernel/vendor_sched/bg_uclamp_max 615
+    write /sys/kernel/vendor_sched/sys_prefer_idle 0
     # cfs_rq clamp is using tg->uclamp setting
     # align it with the vendor_group setting
     write /dev/cpuctl/background/cpu.uclamp.max 60