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Commit 13114538 authored by Jing Ji's avatar Jing Ji
Browse files

Skip updating the process group of system_server 

Previously launching/dismissing any activities within system_server
would update the process group of system_server, those customized
cpuset settings of some threads within system_server would get messed
up because of it.

Now as those remaining activities within system_server are fairly
simple, we could skip updating the process group of system_server,
keep using the existing default one.

Bug: 172245618
Test: Manual - launch/dismiss activities in system_server & cat cpuset
Change-Id: Ia4d58cc4b8fad1c4ff1a52a05c58f9e62b71df30
parent 3d46ae52

services/core/java/com/android/server/am/OomAdjuster.java

+4 −0
Original line number Diff line number Diff line
@@ -394,6 +394,10 @@ public class OomAdjuster { 
        mProcessGroupHandler = new Handler(adjusterThread.getLooper(), msg -> {

            final int pid = msg.arg1;

            final int group = msg.arg2;

            if (pid == ActivityManagerService.MY_PID) {

                // Skip setting the process group for system_server, keep it as default.

                return true;

            }

            if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {

                Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "setProcessGroup "

                        + msg.obj + " to " + group);