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Merge "Throttle the dropbox logs per event-type" into rvc-dev am: 559a551a7d am: 00ba82c284 am: e1c2f429c1

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Change-Id: I3061d50f2497bf6aac692aee603cbb4517c7fca7
This commit is contained in:
Jing Ji
2020-05-30 04:55:44 +00:00
committed by Automerger Merge Worker
parent 48941d1921 e1c2f429c1
commit 752a7f516b
1 changed files with 11 additions and 7 deletions
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18
services/core/java/com/android/server/am/ActivityManagerService.java
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@@ -10156,8 +10156,7 @@ public class ActivityManagerService extends IActivityManager.Stub
}
}
private volatile long mWtfClusterStart;
private volatile int mWtfClusterCount;
private volatile ArrayMap<String, long[]> mErrorClusterRecords = new ArrayMap<>();
/**
* Write a description of an error (crash, WTF, ANR) to the drop box.
@@ -10188,13 +10187,18 @@ public class ActivityManagerService extends IActivityManager.Stub
if (dbox == null || !dbox.isTagEnabled(dropboxTag)) return;
// Rate-limit how often we're willing to do the heavy lifting below to
// collect and record logs; currently 5 logs per 10 second period.
// collect and record logs; currently 5 logs per 10 second period per eventType.
final long now = SystemClock.elapsedRealtime();
if (now - mWtfClusterStart > 10 * DateUtils.SECOND_IN_MILLIS) {
mWtfClusterStart = now;
mWtfClusterCount = 1;
long[] errRecord = mErrorClusterRecords.get(eventType);
if (errRecord == null) {
errRecord = new long[2]; // [0]: startTime, [1]: count
mErrorClusterRecords.put(eventType, errRecord);
}
if (now - errRecord[0] > 10 * DateUtils.SECOND_IN_MILLIS) {
errRecord[0] = now;
errRecord[1] = 1L;
} else {
if (mWtfClusterCount++ >= 5) return;
if (errRecord[1]++ >= 5) return;
}
final StringBuilder sb = new StringBuilder(1024);