ref: 7a3b3fdbe7aa6c0119268205eaafd63a082299e4
parent: 25f53a2e3dd3cc978b9bf76fc14467e802c3ebf1
parent: f84f2315abba08e99875853ce12d9159c5e0d415
author: HaiboZhu <haibozhu@cisco.com>
date: Wed Mar 16 05:48:08 EDT 2016
Merge pull request #2403 from ruil2/downsampling1 change downsampling logic