[IGNITE-4092] Implement prototype for thread-per-partition approach.

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 1.7
• Fix Version/s: 2.0
• Component/s: cache
• Labels: performance
• Assignee: Vladimir Ozerov
• Reporter: Vladimir Ozerov
• Created: 18/Oct/16 13:21
• Updated: 14/Feb/17 08:13
• Resolved: 14/Feb/17 08:13

Description

Rationale:

• Decrease contention on thread-pool blocking queue head/tail;
• Minimize amount of thread parks/unparks;
• Decrease overhead on partition RW locking.

Implementation:

• Implemented striped thread pool;
• Every thread has separate non-blocking queue;
• Blocking back-off strategy if queue is empty.