+ A state change atom can have one exclusive state field, and any
number of primary key fields.
When there is primary key in the atom, it means the state belongs to the primary key.
For example,
message UidProcessStateChanged {
optional int32 uid = 1 [(stateFieldOption).option = PRIMARY];
optional android.app.ProcessStateEnum state = 2 [(stateFieldOption).option = EXCLUSIVE];
}
When there is no primary key fields in the atom, the state is global.
For example,
message ScreenStateChanged {
optional android.view.DisplayStateEnum state = 1 [(stateFieldOption).option = EXCLUSIVE];
}
+ The annotation is consumed by stats_log_api_gen to generate a static map from the state
atoms to its primary fields, and exclusive fields
+ stats_log.proto is splitted into 2 proto files, because statsd needs proto lite, and c++
lite proto library cannot properly ignore the field options which requires full proto.
This CL doesn't change any logic in the statsd yet. A separate CL will use the field option
information to correctly track the state.
Test: added unit tests in stats_log_api_gen_test. and statsd_test pases.
Change-Id: I9e8a979fe81ba60efd4d854bb7087ce4b2b147ec
The key change is to revamp how we parse/store/match a log event, especially how we match repeated
field and attribution nodes, and how we construct dimensions and compare them.
+ We use a integer to encode the field of a log element. And also encode the FieldMatcher into an
integer and a bit mask. The log matching becomes 2 integer operations.
+ Dimension is stored as encoded field and value pair. Checking if 2 dimensions are equal is then
becoming checking if the underlying integers are equal. The integers are stored contiguously
in memory, so it's much faster than previous tree structure.
Start review from FieldValue.h
Test: statsd_test + new unit tests
Bug: 72659059
Change-Id: Iec8daeacdd3f39ab297c10ab9cd7b710a9c42e86
Test: added e2e tests for count/duration metrics sliced by fields in condition and with/without links.
Change-Id: Ie34deba68e6780abdde458be3f0ce5284e76a1a2
2/ Handle Subscription for alert.
3/ Support no_report_metric
Bug: 69522276
Test: all statsd unit tests passed.
Change-Id: I851b235f2d149b8602b0cad632d5bf541962f40a
+ Add a real HashableDimensionKey as a wrapper of the dimension.
So we can get rid of the maps that we kept.
Pay down technical debt and reduce memory usage.
Test: statsd_test & manual
Change-Id: I233280cf1e2ce93da6a8cd4e8514abb066f4016d
+ StatsdStats is the global class that tracks the stats about statsd.
+ Added guardrail for classes that have a map which could potentially grow
unboundedly with the number of logs.
TODO: add unit tests & CTS for StatsdStats, and guardrail
add stats for pulled atoms.
Test: statsd_test
Change-Id: I0ea562de4dd3f6162f7923a9c193420b482c1d51
+ Changed how we construct LogEvent, now it's based on the context from log_msg
without making a copy of the list.
+ All stats logs now have the same event tag, the atom id is the first elem in the log.
Test: statsd_test
Change-Id: I4419380f2ee1c2b2155d427b9f2adb78883b337f
+ Support nested counting
+ Support StopAll
+ Added default_condition to SimpleCondition config
+ Some refactoring/clean up
+ Added unit tests
Test: Added unit tests, statsd_test
Change-Id: I6564ac2e068ce6810e8090c0818064c625c7847a
