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Commit b2c7eede authored by Daeho Jeong's avatar Daeho Jeong
Browse files

Make target dirty segment ratio tunable 



Test: check smart idle maint log of StorageManagerService
Signed-off-by: default avatarDaeho Jeong <daehojeong@google.com>
Change-Id: I97503795473a9977740e717bf7b0ef6283c65a53
parent 6fa155f8

services/core/java/com/android/server/StorageManagerService.java

+8 −2
Original line number Diff line number Diff line
@@ -356,6 +356,8 @@ class StorageManagerService extends IStorageManager.Stub 
    private static final boolean DEFAULT_CHARGING_REQUIRED = true;

    // Minimum GC interval sleep time in ms

    private static final int DEFAULT_MIN_GC_SLEEPTIME = 10000;

    // Target dirty segment ratio to aim to

    private static final int DEFAULT_TARGET_DIRTY_RATIO = 80;



    private volatile int mLifetimePercentThreshold;

    private volatile int mMinSegmentsThreshold;
@@ -364,6 +366,7 @@ class StorageManagerService extends IStorageManager.Stub 
    private volatile float mLowBatteryLevel;

    private volatile boolean mChargingRequired;

    private volatile int mMinGCSleepTime;

    private volatile int mTargetDirtyRatio;

    private volatile boolean mNeedGC;



    private volatile boolean mPassedLifetimeThresh;
@@ -2616,6 +2619,8 @@ class StorageManagerService extends IStorageManager.Stub 
                "charging_required", DEFAULT_CHARGING_REQUIRED);

            mMinGCSleepTime = DeviceConfig.getInt(DeviceConfig.NAMESPACE_STORAGE_NATIVE_BOOT,

                "min_gc_sleeptime", DEFAULT_MIN_GC_SLEEPTIME);

            mTargetDirtyRatio = DeviceConfig.getInt(DeviceConfig.NAMESPACE_STORAGE_NATIVE_BOOT,

                "target_dirty_ratio", DEFAULT_TARGET_DIRTY_RATIO);



            // If we use the smart idle maintenance, we need to turn off GC in the traditional idle

            // maintenance to avoid the conflict
@@ -2756,10 +2761,11 @@ class StorageManagerService extends IStorageManager.Stub 
                            ", dirty reclaim rate: " + mDirtyReclaimRate +

                            ", segment reclaim weight: " + mSegmentReclaimWeight +

                            ", period(min): " + sSmartIdleMaintPeriod +

                            ", min gc sleep time(ms): " + mMinGCSleepTime);

                            ", min gc sleep time(ms): " + mMinGCSleepTime +

                            ", target dirty ratio: " + mTargetDirtyRatio);

                mVold.setGCUrgentPace(avgWriteAmount, mMinSegmentsThreshold, mDirtyReclaimRate,

                                      mSegmentReclaimWeight, sSmartIdleMaintPeriod,

                                      mMinGCSleepTime);

                                      mMinGCSleepTime, mTargetDirtyRatio);

            } else {

                Slog.i(TAG, "Skipping smart idle maintenance - block based checkpoint in progress");

            }