This CL adds a dump command to metrics_client that will dump the
histograms, aggregated by metricsd since it started, in a human readable
format.
This is useful for developers to ensure that their code uses libmetrics
correctly and the reported values are correct.
Sample output (redacted to fit the commit message):
$ metrics_client -d
Histogram: hello recorded 5 samples, average = 54.8 (flags = 0x1)
0 ...
9 --------O (1 = 20.0%) {0.0%}
16 O (0 = 0.0%) {20.0%}
29 --------O (1 = 20.0%) {20.0%}
54 ------------------------O (3 = 60.0%) {40.0%}
100 O (0 = 0.0%) {100.0%}
$
Bug: 25817310
Test: * Send a histogram with metrics_client.
* `metrics_client -d` shows it.
Change-Id: Id186dc5463403ca9181ee9eef8f46b5e809b8714
This CL converts metricsd, libmetrics and metrics_collector to use
Binder to pass metrics samples.
Bug: 25670685
Change-Id: I657faecdf4ed1226ab30ce69e062028463437e7b
Instead of using a single directory for both the internal data of
metricsd and metrics_collector and the shared files (metrics samples log
file and the metrics enabled file), we should use separate directory to
allow for a finer access control.
The new structure will be:
* /data/misc/metrics for the files accessible to all daemons reporting
metrics, metricsd and metrics_collector.
* /data/misc/metricsd for the private files of metricsd.
* /data/misc/metrics_collector for the private files of
metrics_collector.
Bug: 25886951
Test: Unit tests.
Test: Manual: metricsd and metrics_collector run without errors.
Change-Id: I006d19f45f5f419d2b08744126c2e2a0b899c9fa
metrics_daemon should never get a stale answer on whether or not the
metrics are enabled.
This is important as metrics_daemon will be the "source of truth" for
other components.
BUG: 24386281
TEST: unit tests.
Change-Id: I573568abe5d1b840683cede2fdf32cdae028a81a
We cached the enabled status for metrics as a static field in the
metrics library. This field is not reset in between tests which treats
the metrics as enabled if they were enabled previously.
None of the users rely on the caching being static so the cached status
was changed into a field.
Also enabled the metrics in upload_service_test.cc after verifying that
the test failed consistently.
BUG: 24473349
TEST: unit tests.
Change-Id: If05fdca644016d923aa7b1978db5e74ada563c1a
Instead of passing different filenames around, only rely on the metrics
directory and infer the filepath from it. This makes testing easier.
BUG: 23939404
TEST: unit tests.
Change-Id: I79086acc3a546464114fa8ec4656ec04e1c43e35
This cleans up the unit tests and update them to pass.
Cleaned up:
* removed the irrelevant bits.
* Used ScopedTempDir for all test specific files (instead of the current
directory).
* Update some objects to make them more easily testable.
* Group all the test in a single binary and use bionic's test runner.
BUG: 23682444
Change-Id: I289e3a5ff89968fdecd4a156e93bc38bbc25f58b
MODULE_LICENSE_BSD and NOTICE were removed as the license is no longer
different from the rest of system/core.
BUG: 23086670
Change-Id: I1e83ef2ecb9c721150f8aab283c9ff960337da8c
This makes the import path less confusing:
* metrics/metrics_library.h is imported from the exported headers.
* metricsd/* for includes by the metrics daemon itself.
BUG: 22879597
Change-Id: I9f44ea3a548cae39d4546fcd724e8007f6dd4bd0
Bertrand SIMONNET