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feat(fileinfo): use AHashMap for metadata fields

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- Add ahash dependency to workspace, filemeta, and utils crates
- Change FileInfo.metadata to AHashMap<String, String>
- Change ObjectPartInfo.checksums to Option<AHashMap<String, String>>
- Change MetaObjectV1.meta to AHashMap<String, String>
- Change MetaObjectV1Part.checksums to Option<AHashMap<String, String>>
- Change UniquePartChecksums to use AHashMap
- Make metadata_compat functions generic over BuildHasher
- Make get_internal_replication_state generic over BuildHasher

This optimization replaces the standard library's SipHash with ahash,
which provides 2-3x faster hashing for typical key types.

Refs: https://github.com/rustfs/backlog/issues/2005

Co-Authored-By: heihutu <heihutu@gmail.com>
This commit is contained in:
houseme
2026-08-26 21:36:43 +08:00
parent 2ada8a5cfb
commit ec9aabcf00
9 changed files with 43 additions and 24 deletions
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crates/filemeta/src/lib.rs
+6
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@@ -22,6 +22,12 @@ mod replication;
pub mod test_data;
/// High-performance HashMap type alias using ahash instead of SipHash.
pub type AHashMap<K, V> = ahash::AHashMap<K, V>;
/// High-performance HashSet type alias using ahash.
pub type AHashSet<K> = ahash::AHashSet<K>;
pub use error::*;
pub use fileinfo::*;
pub use filemeta::*;