[CASSANDRA-11541] correct the java documentation for SlabAllocator and NativeAllocator

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.2.7, 3.0.7, 3.7
• Labels: document lhf
• Assignee: Zhao Yang
• Reporter: Zhao Yang

Authors

Zhao Yang

Reviewers

Branimir Lambov

• Created: 10/Apr/16 14:39
• Updated: 16/Apr/19 09:30
• Resolved: 09/May/16 00:35

Description

I heard a lot that Cassandra uses 2MB slab allocation strategy for memtable to improve its memory efficiency. But in fact, it has been changed from 2MB to 1 MB.

And in NativeAllocator, it's logarithmically from 8kb to 1mb.

large number of tables may not cause too much trouble in term of memtable.