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Commit f4bc936d authored by Tim Murray's avatar Tim Murray
Browse files

ProcessStateRecord: add oom_adj type tracing 

Enable the debug flag for trace output in system_server of all OomAdjuster state transitions.

Test: local trace
Bug: 247573320
Change-Id: Id4519038198012ed3eb43f21a5a99f9323a592a7
parent 379975d9

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

+14 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ import android.annotation.ElapsedRealtimeLong; 
import android.app.ActivityManager;

import android.content.ComponentName;

import android.os.SystemClock;

import android.os.Trace;

import android.util.Slog;

import android.util.TimeUtils;
@@ -43,6 +44,9 @@ import java.io.PrintWriter; 
 * The state info of the process, including proc state, oom adj score, et al.

 */

final class ProcessStateRecord {

    // Enable this to trace all OomAdjuster state transitions

    private static final boolean TRACE_OOM_ADJ = false;



    private final ProcessRecord mApp;

    private final ActivityManagerService mService;

    private final ActivityManagerGlobalLock mProcLock;
@@ -916,6 +920,12 @@ final class ProcessStateRecord { 


    @GuardedBy("mService")

    void setAdjType(String adjType) {

        if (TRACE_OOM_ADJ) {

            Trace.asyncTraceForTrackEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER,

                    "oom:" + mApp.processName + "/u" + mApp.uid, 0);

            Trace.asyncTraceForTrackBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER,

                    "oom:" + mApp.processName + "/u" + mApp.uid, adjType, 0);

        }

        mAdjType = adjType;

    }
@@ -1153,6 +1163,10 @@ final class ProcessStateRecord { 


    @GuardedBy({"mService", "mProcLock"})

    void onCleanupApplicationRecordLSP() {

        if (TRACE_OOM_ADJ) {

            Trace.asyncTraceForTrackEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER,

                    "oom:" + mApp.processName + "/u" + mApp.uid, 0);

        }

        setHasForegroundActivities(false);

        mHasShownUi = false;

        mForcingToImportant = null;