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Commit 497aff40 authored by Marco Ballesio's avatar Marco Ballesio
Browse files

App freezer stat logs 

Bug: 143308662
Test: westworld tests on local device (go/westworld-local-development)
Change-Id: I0f3f966b6057a3465a1e686f93caf28cd7247b2c
parent 4b41675b

cmds/statsd/src/atoms.proto

+26 −0
Original line number Diff line number Diff line
@@ -391,6 +391,7 @@ message Atom { 
        WifiHealthStatReported wifi_health_stat_reported = 251 [(module) = "wifi"];

        WifiFailureStatReported wifi_failure_stat_reported = 252 [(module) = "wifi"];

        WifiConnectionResultReported wifi_connection_result_reported = 253 [(module) = "wifi"];

        AppFreezeChanged app_freeze_changed = 254 [(module) = "framework"];

        SdkExtensionStatus sdk_extension_status = 354;

    }
@@ -8366,3 +8367,28 @@ message SdkExtensionStatus { 
    // "Failed" here can mean a symbol that wasn't meant to be visible was, or the other way around.

    optional int32 failed_call_symbol = 3;

}



/**

 * Logs when an app is frozen or unfrozen.

 *

 * Logged from:

 *   frameworks/base/services/core/java/com/android/server/am/CachedAppOptimizer.java

 */

message AppFreezeChanged {

  // The type of event.

  enum Action {

    UNKNOWN = 0;

    FREEZE_APP = 1;

    UNFREEZE_APP = 2;

  }

  optional Action action = 1;



  // Pid of the process being frozen.

  optional int32 pid = 2;



  // Name of the process being frozen.

  optional string process_name = 3;



  // Time since last unfrozen.

  optional int64 time_unfrozen_millis = 4;

}

services/core/java/com/android/server/am/CachedAppOptimizer.java

+19 −0
Original line number Diff line number Diff line
@@ -946,6 +946,15 @@ public final class CachedAppOptimizer { 
                }



                EventLog.writeEvent(EventLogTags.AM_FREEZE, pid, name);



                // See above for why we're not taking mPhenotypeFlagLock here

                if (mRandom.nextFloat() < mFreezerStatsdSampleRate) {

                    FrameworkStatsLog.write(FrameworkStatsLog.APP_FREEZE_CHANGED,

                            FrameworkStatsLog.APP_FREEZE_CHANGED__ACTION__FREEZE_APP,

                            pid,

                            name,

                            unfrozenDuration);

                }

            }

        }
@@ -994,6 +1003,16 @@ public final class CachedAppOptimizer { 
                }



                EventLog.writeEvent(EventLogTags.AM_UNFREEZE, pid, name);



                // See above for why we're not taking mPhenotypeFlagLock here

                if (mRandom.nextFloat() < mFreezerStatsdSampleRate) {

                    FrameworkStatsLog.write(

                            FrameworkStatsLog.APP_FREEZE_CHANGED,

                            FrameworkStatsLog.APP_FREEZE_CHANGED__ACTION__UNFREEZE_APP,

                            pid,

                            name,

                            frozenDuration);

                }

            }

        }

    }