[IGNITE-15443] Add Map with primitive keys implementations.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Done
• Labels: ignite-3 newbie perfomance
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Vladimir Ermakov
• Reporter: Andrey Mashenkov
• Created: 03/Sep/21 13:58
• Updated: 03/Nov/21 13:23
• Resolved: 03/Nov/21 13:23

Description

There are a number of places where Map<Integer, Integer> and Map<Integer, Object> are used.
Let's add an optimized Map with a primitive key (IntMap, IntIntMap) to the ignite-core module.

Let's benchmark next candidates and choose one

• IntMap from Ignite 2 with robinhood hashing.
• FastUtils
• Netty
• OpenHFT

Issue Links

• blocks: IGNITE-15462 Calcite. Replace usages of map of int to IntMap where possible
• links to: Some benchmarks