MyFavMirrors/minio
1
0
Fork 0
mirror of https://github.com/minio/minio.git synced 2024-12-24 06:05:55 -05:00
Code Issues Packages Projects Releases Wiki Activity

use faster way for siphash (#11640)

Browse Source
This commit is contained in:
Harshavardhana 2021-02-26 16:53:06 -08:00 committed by GitHub
parent 9171d6ef65
commit b690304eed
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
cmd/erasure-sets.go
View File

@ -18,6 +18,7 @@ package cmd
import (
"context"
"encoding/binary"
"errors"
"fmt"
"hash/crc32"
@ -663,9 +664,11 @@ func sipHashMod(key string, cardinality int, id [16]byte) int {
if cardinality <= 0 {
return -1
}
sip := siphash.New(id[:])
sip.Write([]byte(key))
return int(sip.Sum64() % uint64(cardinality))
// use the faster version as per siphash docs
// https://github.com/dchest/siphash#usage
k0, k1 := binary.LittleEndian.Uint64(id[0:8]), binary.LittleEndian.Uint64(id[8:16])
sum64 := siphash.Hash(k0, k1, []byte(key))
return int(sum64 % uint64(cardinality))
}
func crcHashMod(key string, cardinality int) int {