[HBASE-18542] [HLC] Performance microbenchmarks

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Apekshit Sharma
• Created: 09/Aug/17 00:33
• Updated: 01/Jul/22 20:33

Description

Need tests to benchmark performance of Clock#now() and update() functions (for all types of clocks).
If update() is too costly, we can do optimizations in ExecuteProceduresRemoteCall#call(), HRegion#replayRecoveredEdits() and other places where we call update() in loop. Instead, it might be faster to calculate max timestamp in loop and call update() just once.