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Commit 6e66d846 authored by Sihua Ma's avatar Sihua Ma
Browse files

Use trace to investigate the performance improvement for io moving 

Test: N/A
Change-Id: I1e154d882f9081499c91d063d710cf59879f7abc
parent 5a81870e

services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java

+6 −0
Original line number Original line Diff line number Diff line
@@ -327,10 +327,13 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku 
        synchronized (mLock) {

        synchronized (mLock) {

            // No need to enforce unlocked state when there is no caller. User can be in the

            // No need to enforce unlocked state when there is no caller. User can be in the

            // stopping state or removed by the time the message is processed

            // stopping state or removed by the time the message is processed

            Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "convert_state_to_bytes");

            ensureGroupStateLoadedLocked(userId, false /* enforceUserUnlockingOrUnlocked */);

            ensureGroupStateLoadedLocked(userId, false /* enforceUserUnlockingOrUnlocked */);

            userIdToBytesMapping = saveStateToByteArrayLocked(userId);

            userIdToBytesMapping = saveStateToByteArrayLocked(userId);

            Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);

        }

        }





        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "byte_to_disk_io");

        for (int i = 0; i < userIdToBytesMapping.size(); i++) {

        for (int i = 0; i < userIdToBytesMapping.size(); i++) {

            int currentProfileId = userIdToBytesMapping.keyAt(i);

            int currentProfileId = userIdToBytesMapping.keyAt(i);

            byte[] currentStateByteArray = userIdToBytesMapping.valueAt(i);

            byte[] currentStateByteArray = userIdToBytesMapping.valueAt(i);
@@ -351,6 +354,7 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku 
                currentFile.failWrite(fileStream);

                currentFile.failWrite(fileStream);

            }

            }

        }

        }

        Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);





        return true;

        return true;

    }

    }
@@ -4585,8 +4589,10 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku 
            synchronized (mLock) {

            synchronized (mLock) {

                // No need to enforce unlocked state when there is no caller. User can be in the

                // No need to enforce unlocked state when there is no caller. User can be in the

                // stopping state or removed by the time the message is processed

                // stopping state or removed by the time the message is processed

                Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "convert_state_and_io");

                ensureGroupStateLoadedLocked(mUserId, false /* enforceUserUnlockingOrUnlocked */ );

                ensureGroupStateLoadedLocked(mUserId, false /* enforceUserUnlockingOrUnlocked */ );

                saveStateLocked(mUserId);

                saveStateLocked(mUserId);

                Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);

            }

            }

        }

        }

    }

    }