Android/frameworks_base
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Add DeviceConfig flag to be able to change sampling ratio of AttributedAppOps atom after

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R release.

Bug: 143519689
Test: ./out/host/linux-x86/bin/statsd_testdrive 10075
Change-Id: If7fa68cab6b699b6f09896a818b1afc9eadc0c7c
This commit is contained in:
Stanislav Zholnin
2020-04-19 12:10:05 +01:00
parent 1e52a093ae
commit 2f63e58cd0
1 changed files with 6 additions and 1 deletions
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7
services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
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@@ -98,6 +98,7 @@ import android.os.connectivity.WifiActivityEnergyInfo;
import android.os.storage.DiskInfo;
import android.os.storage.StorageManager;
import android.os.storage.VolumeInfo;
import android.provider.DeviceConfig;
import android.provider.Settings;
import android.stats.storage.StorageEnums;
import android.telephony.ModemActivityInfo;
@@ -204,6 +205,7 @@ public class StatsPullAtomService extends SystemService {
private static final int CPU_TIME_PER_THREAD_FREQ_MAX_NUM_FREQUENCIES = 8;
private static final int OP_FLAGS_PULLED = OP_FLAG_SELF | OP_FLAG_TRUSTED_PROXY;
private static final String COMMON_PERMISSION_PREFIX = "android.permission.";
private static final String APP_OPS_TARGET_COLLECTION_SIZE = "app_ops_target_collection_size";
private final Object mNetworkStatsLock = new Object();
@GuardedBy("mNetworkStatsLock")
@@ -2913,7 +2915,10 @@ public class StatsPullAtomService extends SystemService {
HistoricalOps histOps = ops.get(EXTERNAL_STATS_SYNC_TIMEOUT_MILLIS,
TimeUnit.MILLISECONDS);
if (mAppOpsSamplingRate == 0) {
mAppOpsSamplingRate = constrain((5000 * 100) / estimateAppOpsSize(), 1, 100);
int appOpsTargetCollectionSize = DeviceConfig.getInt(
DeviceConfig.NAMESPACE_PERMISSIONS, APP_OPS_TARGET_COLLECTION_SIZE, 5000);
mAppOpsSamplingRate = constrain(
(appOpsTargetCollectionSize * 100) / estimateAppOpsSize(), 1, 100);
}
processHistoricalOps(histOps, atomTag, pulledData);
} catch (Throwable t) {