rocksdb/memory
Gang Liao 275cd80cdb Add a blob-specific cache priority (#10461)
Summary:
RocksDB's `Cache` abstraction currently supports two priority levels for items: high (used for frequently accessed/highly valuable SST metablocks like index/filter blocks) and low (used for SST data blocks). Blobs are typically lower-value targets for caching than data blocks, since 1) with BlobDB, data blocks containing blob references conceptually form an index structure which has to be consulted before we can read the blob value, and 2) cached blobs represent only a single key-value, while cached data blocks generally contain multiple KVs. Since we would like to make it possible to use the same backing cache for the block cache and the blob cache, it would make sense to add a new, lower-than-low cache priority level (bottom level) for blobs so data blocks are prioritized over them.

This task is a part of https://github.com/facebook/rocksdb/issues/10156

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10461

Reviewed By: siying

Differential Revision: D38672823

Pulled By: ltamasi

fbshipit-source-id: 90cf7362036563d79891f47be2cc24b827482743
2022-08-12 17:59:06 -07:00
..
allocator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
arena.cc Fail DB::Open() if logger cannot be created (#9984) 2022-05-27 07:23:31 -07:00
arena.h arena.h: fix Arena::IsInInlineBlock() (#9317) 2022-05-09 12:21:21 -07:00
arena_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
concurrent_arena.cc Remove ROCKSDB_SUPPORT_THREAD_LOCAL define because it's a part of C++11 (#10015) 2022-05-18 15:25:19 -07:00
concurrent_arena.h Remove ROCKSDB_SUPPORT_THREAD_LOCAL define because it's a part of C++11 (#10015) 2022-05-18 15:25:19 -07:00
jemalloc_nodump_allocator.cc Remove own ToString() (#9955) 2022-05-06 13:03:58 -07:00
jemalloc_nodump_allocator.h Make MemoryAllocator into a Customizable class (#8980) 2021-12-17 04:20:47 -08:00
memkind_kmem_allocator.cc Make MemoryAllocator into a Customizable class (#8980) 2021-12-17 04:20:47 -08:00
memkind_kmem_allocator.h Fix compilation error when building static_lib (#9377) 2022-01-12 09:04:01 -08:00
memory_allocator.cc Restore Regex support for ObjectLibrary::Register, rename new APIs to allow old one to be deprecated in the future (#9362) 2022-01-11 06:33:48 -08:00
memory_allocator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
memory_allocator_test.cc Add a blob-specific cache priority (#10461) 2022-08-12 17:59:06 -07:00
memory_usage.h Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00