Refactor operation tracker ctor and introduce custom percentiles#1159

Merged

cgtz merged 3 commits intolinkedin:masterfrom jsjtzyy:configurable-percentile

May 3, 2019

+384-375

Commits on Apr 25, 2019

Refactor operation tracker ctor and introduce custom percentiles
jsjtzyy
committed

Commits on Apr 26, 2019

address Ze's comment and clean the code
jsjtzyy
committed

Commits on May 2, 2019

introduce RouterOperation enum
jsjtzyy
committed