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EventLog when an executed job had been deferred by standby

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This gives us a way to review the impact of the deferral on jobs'
nominal timeliness.

Bug: 70297451
Test: manual
Change-Id: I0b5caab6ac7157aab1524f7b014e521f34400e1d
This commit is contained in:
Christopher Tate
2018-01-04 16:10:26 -08:00
committed by Chris Tate
parent df9e969006
commit 373ea9056d
2 changed files with 14 additions and 5 deletions
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4
services/core/java/com/android/server/EventLogTags.logtags
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@@ -261,6 +261,10 @@ option java_package com.android.server
2756 fstrim_finish (time|2|3)
# ---------------------------
# Job scheduler
# ---------------------------
8000 job_deferred_execution (time|2|3)
# AudioService.java
# ---------------------------
40000 volume_changed (stream|1), (prev_level|1), (level|1), (max_level|1), (caller|3)

15
services/core/java/com/android/server/job/JobServiceContext.java
View File

@@ -38,12 +38,14 @@ import android.os.PowerManager;
import android.os.RemoteException;
import android.os.UserHandle;
import android.os.WorkSource;
import android.util.EventLog;
import android.util.Slog;
import android.util.TimeUtils;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.app.IBatteryStats;
import com.android.server.EventLogTags;
import com.android.server.job.controllers.JobStatus;
/**
@@ -222,17 +224,20 @@ public final class JobServiceContext implements ServiceConnection {
isDeadlineExpired, triggeredUris, triggeredAuthorities, job.network);
mExecutionStartTimeElapsed = sElapsedRealtimeClock.millis();
if (DEBUG_STANDBY) {
final long whenDeferred = job.getWhenStandbyDeferred();
if (whenDeferred > 0) {
final long whenDeferred = job.getWhenStandbyDeferred();
if (whenDeferred > 0) {
final long deferral = mExecutionStartTimeElapsed - whenDeferred;
EventLog.writeEvent(EventLogTags.JOB_DEFERRED_EXECUTION, deferral);
if (DEBUG_STANDBY) {
StringBuilder sb = new StringBuilder(128);
sb.append("Starting job deferred for standby by ");
TimeUtils.formatDuration(mExecutionStartTimeElapsed - whenDeferred, sb);
sb.append(" : ");
TimeUtils.formatDuration(deferral, sb);
sb.append(" ms : ");
sb.append(job.toShortString());
Slog.v(TAG, sb.toString());
}
}
// Once we'e begun executing a job, we by definition no longer care whether
// it was inflated from disk with not-yet-coherent delay/deadline bounds.
job.clearPersistedUtcTimes();