Avoid extra `predicate()` calls#3869

Merged

mattklein123 merged 6 commits intoenvoyproxy:masterfrom

rgs1:subset-lb-perf-improvements

Jul 18, 2018

Commits on Jul 16, 2018

Avoid extra `predicate()` calls
Raul Gutierrez Segales
committed
Remove unused variable
Raul Gutierrez Segales
committed
Fix/clarify comment.
Raul Gutierrez Segales
committed

Commits on Jul 17, 2018

Avoid filter() when we only have 1 locality
Raul Gutierrez Segales
committed
Inline most of Config::Metadata::metadataValue()
Raul Gutierrez Segales
committed
Remove unneeded dereferences
Raul Gutierrez Segales
committed