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Optimize the murmur2 hash function #1350

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apocelipes wants to merge 1 commit into from
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Optimize the murmur2 hash function #1350

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12 changes: 6 additions & 6 deletions balancer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -333,14 +333,14 @@ func murmur2(data []byte) uint32 {
}

// Handle the last few bytes of the input array
extra := length % 4
if extra >= 3 {
switch length % 4 {
case 3:
h ^= (uint32(data[(length & ^3)+2]) & 0xff) << 16
}
if extra >= 2 {
fallthrough
case 2:
h ^= (uint32(data[(length & ^3)+1]) & 0xff) << 8
}
if extra >= 1 {
fallthrough
case 1:
h ^= uint32(data[length & ^3]) & 0xff
h *= m
}
Expand Down