[CASSANDRA-5361] Enable ThreadLocal allocation in the JVM

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 1.1.11, 1.2.4
• Labels: qa-resolved

Environment

JDK 6

• Assignee: T Jake Luciani
• Reporter: T Jake Luciani

Authors

T Jake Luciani

• Tester: Ryan McGuire
• Created: 19/Mar/13 19:53
• Updated: 16/Apr/19 09:32
• Resolved: 21/Mar/13 16:47

Description

Adding -XX:+UseTLAB to cassandra-env.sh yields a ~15% read performance boost.

Works with usual stress tool but also in our production.

It enables thread local allocation of new objects which makes sense for SEDA based systems.