[HBASE-14315] Save one call to KeyValueHeap.peek per row

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 0.98.15, 1.0.3, 1.1.3, 2.0.0
• Assignee: Lars Hofhansl
• Reporter: Lars Hofhansl
• Created: 26/Aug/15 06:51
• Updated: 27/Jan/16 15:28
• Resolved: 28/Aug/15 22:26

Description

Another one of my micro optimizations.
In StoreScanner.next(...) we can actually save a call to KeyValueHeap.peek, which in my runs of scan heavy loads shows up at top.

Based on the run and data this can safe between 3 and 10% of runtime.