go: add a couple timers to see about GetHashes vrs Sync time
go: add a couple timers to see about GetHashes vrs Sync time

Change-Id: I9fca1583e3f00bf29bf16628b10885498e21efb7

redbo/hummingbird,troubling/hummingbird,creiht/hummingbird,creiht/hummingbird,nadeemsyed/hummingbird,corystone/hummingbird,nadeemsyed/hummingbird,troubling/hummingbird,redbo/hummingbird,corystone/hummingbird