tree 10e1200f539bfe8eb9c23b8d042f61f8429e9f34
parent 91bc8bb602e226c27d66acca72477c75ac2db2a3
author Eric Holk <eholk@google.com> 1606250538 -0800
committer Eric Holk <eholk@google.com> 1611190380 -0800

Define atom for ART counters

This CL defines the atom used by ART to encode fine grained metrics
about ART's behavior and performance.

ART keeps a set of internal counters. A subset of these are exported to
statsd. The list of items exported by ART is given in the ArtDatumId
enum, and the values of these items will be encoded in an
ArtDatumReported message. These reports are grouped into sessions, which
indicate that the metrics all were reported by the same ART runtime
instance.

Bug: 170149255
Test: m
Change-Id: I6f987cbb1694abc8c1658218362622bd09ebac08