| 9def8e3995b1034d943a0fd22b6e512bfacdab77 |
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17-Apr-2018 |
Yangster-mac <yanglu@google.com> |
Reduce statsd log data size.
1. Hash the strings in metric dimensions.
2. Optimize the timestamp encoding in bucket.
Use bucket num for full bucket and millis for
partial bucket.
3. Encode the dimension path per metric and avoid
deduping it across dimensons.
Test: statsd test
Change-Id: I18f69654de85edb21a9c835c73edead756295e05
BUG: b/77813755
/frameworks/base/cmds/statsd/tests/FieldValue_test.cpp
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| 5caaa9d8542585e537ac762c35879eb42dd6bbb4 |
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07-Mar-2018 |
Chenjie Yu <cjyu@google.com> |
Clean up atoms.proto
changes are:
1) for pushed atoms, use attribution node in place of uid when
appropriate
2) name changes to be more consistent
Bug: 73823969
Test: manual test
Change-Id: Iacf7186dbd7a2282f7fe481f43dbbf92e1165b47
/frameworks/base/cmds/statsd/tests/FieldValue_test.cpp
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| e06cfd777a501eca17f8dd796b32ad61002c5875 |
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11-Mar-2018 |
Yangster-mac <yanglu@google.com> |
Support slicing by chain.
BUG: b/73975181
Test: statsd test
Change-Id: I913ae0f68ff21ed0703bb5da9c60d3eaa3bf5981
/frameworks/base/cmds/statsd/tests/FieldValue_test.cpp
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| 9c1debe330006b2b4d5c08a55905789c57369609 |
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19-Feb-2018 |
Yao Chen <yaochen@google.com> |
Add annotation to atoms that represent a state change in atoms.proto
+ 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
/frameworks/base/cmds/statsd/tests/FieldValue_test.cpp
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| 8a8d16ceea1e5b7a2f8c41e17b5d993035f50f5d |
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08-Feb-2018 |
Yao Chen <yaochen@google.com> |
Statsd CPU optimization.
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
/frameworks/base/cmds/statsd/tests/FieldValue_test.cpp
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