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Commit 8a0d6e46 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Automerger Merge Worker
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Merge "CPU time min threshold for CpuTimePerUidFreq" into rvc-qpr-dev am: cc3ff5cd 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12977768

Change-Id: Ie34dcb37362006d5c0ba87c4d6b8139664d2fb9d
parents b224a4ba cc3ff5cd

services/core/java/com/android/server/stats/pull/StatsPullAtomService.java

+8 −1
Original line number Original line Diff line number Diff line
@@ -249,6 +249,13 @@ public class StatsPullAtomService extends SystemService { 
    // 20% as a conservative estimate.

    // 20% as a conservative estimate.

    private static final int MAX_PROCSTATS_RAW_SHARD_SIZE = (int) (MAX_PROCSTATS_SHARD_SIZE * 1.20);

    private static final int MAX_PROCSTATS_RAW_SHARD_SIZE = (int) (MAX_PROCSTATS_SHARD_SIZE * 1.20);





    /**

     * Threshold to filter out small CPU times at frequency per UID. Those small values appear

     * because of more precise accounting in a BPF program. Discarding them reduces the data by at

     * least 20% with negligible error.

     */

    private static final int MIN_CPU_TIME_PER_UID_FREQ = 10;



    private final Object mThermalLock = new Object();

    private final Object mThermalLock = new Object();

    @GuardedBy("mThermalLock")

    @GuardedBy("mThermalLock")

    private IThermalService mThermalService;

    private IThermalService mThermalService;
@@ -1556,7 +1563,7 @@ public class StatsPullAtomService extends SystemService { 
    int pullCpuTimePerUidFreqLocked(int atomTag, List<StatsEvent> pulledData) {

    int pullCpuTimePerUidFreqLocked(int atomTag, List<StatsEvent> pulledData) {

        mCpuUidFreqTimeReader.readAbsolute((uid, cpuFreqTimeMs) -> {

        mCpuUidFreqTimeReader.readAbsolute((uid, cpuFreqTimeMs) -> {

            for (int freqIndex = 0; freqIndex < cpuFreqTimeMs.length; ++freqIndex) {

            for (int freqIndex = 0; freqIndex < cpuFreqTimeMs.length; ++freqIndex) {

                if (cpuFreqTimeMs[freqIndex] != 0) {

                if (cpuFreqTimeMs[freqIndex] >= MIN_CPU_TIME_PER_UID_FREQ) {

                    StatsEvent e = StatsEvent.newBuilder()

                    StatsEvent e = StatsEvent.newBuilder()

                            .setAtomId(atomTag)

                            .setAtomId(atomTag)

                            .writeInt(uid)

                            .writeInt(uid)