[KAFKA-8963] Benchmark and optimize incremental fetch session handler

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.5.0
• Assignee: Lucas Bradstreet
• Reporter: Lucas Bradstreet
• Created: 30/Sep/19 18:07
• Updated: 28/Feb/20 16:03
• Resolved: 28/Feb/20 16:03

Description

The FetchSessionHandler is a cause of high CPU usage in the replica fetcher for brokers with high partition counts. A jmh benchmark should be added and the incremental fetch session handling should be measured and optimized.