commit fd815b2a2c9a40937458276634bb3c4bfb72d1df
author Vitalii Tomkiv <vitalit@google.com> Wed May 18 17:40:41 2016 -0700
committer Vitalii Tomkiv <vitalit@google.com> Wed Jun 08 10:54:03 2016 -0700
tree 028bf7ac31d184046d3ee4722f63b8c2ad9c0cad
parent 93b530824cc95eed796e5a632e1eca7e57f60da5

Set zygote process priority to -20 to speed up VM startup time.

Tests for Nexus9 device shows 450ms boot time speedup, 180ms for Nexus
5X.

Bug: 28866384

Change-Id: Icefd130d4bfe5538dae5b9518250807351b0789e

rootdir/init.zygote32.rc

diff --git a/rootdir/init.zygote32.rc b/rootdir/init.zygote32.rc
index 0ca38b9..4b76383 100644
--- a/rootdir/init.zygote32.rc
+++ b/rootdir/init.zygote32.rc
@@ -1,5 +1,6 @@
 service zygote /system/bin/app_process -Xzygote /system/bin --zygote --start-system-server
     class main
+    priority -20
     socket zygote stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on

rootdir/init.zygote32_64.rc

diff --git a/rootdir/init.zygote32_64.rc b/rootdir/init.zygote32_64.rc
index 1646c0f..2efd8e2 100644
--- a/rootdir/init.zygote32_64.rc
+++ b/rootdir/init.zygote32_64.rc
@@ -1,5 +1,6 @@
 service zygote /system/bin/app_process32 -Xzygote /system/bin --zygote --start-system-server --socket-name=zygote
     class main
+    priority -20
     socket zygote stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
@@ -9,6 +10,7 @@
 
 service zygote_secondary /system/bin/app_process64 -Xzygote /system/bin --zygote --socket-name=zygote_secondary
     class main
+    priority -20
     socket zygote_secondary stream 660 root system
     onrestart restart zygote
     writepid /dev/cpuset/foreground/tasks /sys/fs/cgroup/stune/foreground/tasks

rootdir/init.zygote64.rc

diff --git a/rootdir/init.zygote64.rc b/rootdir/init.zygote64.rc
index b477c8e..342a561 100644
--- a/rootdir/init.zygote64.rc
+++ b/rootdir/init.zygote64.rc
@@ -1,5 +1,6 @@
 service zygote /system/bin/app_process64 -Xzygote /system/bin --zygote --start-system-server
     class main
+    priority -20
     socket zygote stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on

rootdir/init.zygote64_32.rc

diff --git a/rootdir/init.zygote64_32.rc b/rootdir/init.zygote64_32.rc
index 633a981..b3ac7b0 100644
--- a/rootdir/init.zygote64_32.rc
+++ b/rootdir/init.zygote64_32.rc
@@ -1,5 +1,6 @@
 service zygote /system/bin/app_process64 -Xzygote /system/bin --zygote --start-system-server --socket-name=zygote
     class main
+    priority -20
     socket zygote stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
@@ -9,6 +10,7 @@
 
 service zygote_secondary /system/bin/app_process32 -Xzygote /system/bin --zygote --socket-name=zygote_secondary
     class main
+    priority -20
     socket zygote_secondary stream 660 root system
     onrestart restart zygote
     writepid /dev/cpuset/foreground/tasks /sys/fs/cgroup/stune/foreground/tasks