[IGNITE-20594] Replace ThreadLocal ByteBuffer with PooledAllocator

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: IEP-109 ise
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Yuri Naryshkin
• Reporter: Nikolay Izhikov
• Created: 09/Oct/23 06:50
• Updated: 15/Nov/23 10:30

Description

Current approach uses thread local ByteBuffer to write data while dumping caches.
This can lead to memory overhead when only some threads from pool modifies data (call writeChanged) and for each thread separate ByteBuffer allocated.
We have PooledAllocator that can provide ability to reduce memory overhead.
Need to study if it can be used in this case.