[KUDU-3342] Add an implementation of the block cache on high bandwidth memory

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: tserver
• Assignee: Unassigned
• Reporter: Chong Yeol Nah
• Created: 30/Nov/21 20:51
• Updated: 14/Feb/23 22:25

Description

Design document: link

This feature adds support for a high-bandwidth cache based on memkind[1].

The cache will be configured using a new flag --block_cache_type=HBW.

The code changes contained are:

• Introduce the new flags to select the cache implementation
• Introduce the new cache implementation, which uses hbmalloc APIs to allocate/free memory

[1] http://memkind.github.io/memkind/man_pages/hbwmalloc.html