tree 8a10683b76dadc3c7ac46d95c561b60a42b9d2bf
parent ef7d0829bdb0de23804c536f3b2be6afc0baf122
author nharmata <nharmata@google.com> 1556069455 -0700
committer Copybara-Service <copybara-worker@google.com> 1556069521 -0700

Provide a parallel implementation of the 'tests' query function.

Both 'test_suite' expansion and Callback#process work happen in async QueryTaskFutures. Contrast with the old implementation, where we would do test suite expansion in a single thread and then Callback#process those test targets on the same thread.

Also, fix a large CPU hotspot in BlazeTargetAccessor#getLabelListAttr. This hotspot becomes very obvious once we have the parallelism.

RELNOTES: None
PiperOrigin-RevId: 244964705