Jimmy Xiang commented on HBASE-5620:

I did some testing with YCSB.  I loaded 9000 rows to a table and read (Get) 
from it for 2000000 times.
The idea is to have less data so that all are in memory, so as to test the RPC 

The performance number changes.  On average, the average read latency is 335us 
without the patch, 362us with the patch.
It is about 27us (8%) degrade.
> Convert the client protocol of HRegionInterface to PB
> -----------------------------------------------------
>                 Key: HBASE-5620
>                 URL: https://issues.apache.org/jira/browse/HBASE-5620
>             Project: HBase
>          Issue Type: Sub-task
>          Components: ipc, master, migration, regionserver
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>             Fix For: 0.96.0
>         Attachments: hbase-5620-sec.patch, hbase-5620_v3.patch, 
> hbase-5620_v4.patch, hbase-5620_v4.patch

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