Timerix/DTLib.XXHash
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Improve perfomance for XXH32 and XXH64

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This commit is contained in:
Oleksandr Melnyk
2022-07-16 12:28:06 +03:00
parent 9ab0dd4290
commit 91b72f21db
5 changed files with 56 additions and 42 deletions
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26
src/Standart.Hash.xxHash/__inline__xxHash32.cs
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@@ -27,23 +27,28 @@ public partial class xxHash32
do
{
var reg1 = *((uint*)(input + 0));
var reg2 = *((uint*)(input + 4));
var reg3 = *((uint*)(input + 8));
var reg4 = *((uint*)(input + 12));
// XXH32_round
v1 += *((uint*) (input+0)) * XXH_PRIME32_2;
v1 += reg1 * XXH_PRIME32_2;
v1 = (v1 << 13) | (v1 >> (32 - 13));
v1 *= XXH_PRIME32_1;
// XXH32_round
v2 += *((uint*) (input+4)) * XXH_PRIME32_2;
v2 += reg2 * XXH_PRIME32_2;
v2 = (v2 << 13) | (v2 >> (32 - 13));
v2 *= XXH_PRIME32_1;
// XXH32_round
v3 += *((uint*) (input+8)) * XXH_PRIME32_2;
v3 += reg3 * XXH_PRIME32_2;
v3 = (v3 << 13) | (v3 >> (32 - 13));
v3 *= XXH_PRIME32_1;
// XXH32_round
v4 += *((uint*) (input+12)) * XXH_PRIME32_2;
v4 += reg4 * XXH_PRIME32_2;
v4 = (v4 << 13) | (v4 >> (32 - 13));
v4 *= XXH_PRIME32_1;
@@ -100,23 +105,28 @@ public partial class xxHash32
do
{
var reg1 = *((uint*)(ptr + 0));
var reg2 = *((uint*)(ptr + 4));
var reg3 = *((uint*)(ptr + 8));
var reg4 = *((uint*)(ptr + 12));
// XXH32_round
v1 += *((uint*)(ptr + 0)) * XXH_PRIME32_2;
v1 += reg1 * XXH_PRIME32_2;
v1 = (v1 << 13) | (v1 >> (32 - 13));
v1 *= XXH_PRIME32_1;
// XXH32_round
v2 += *((uint*)(ptr + 4)) * XXH_PRIME32_2;
v2 += reg2 * XXH_PRIME32_2;
v2 = (v2 << 13) | (v2 >> (32 - 13));
v2 *= XXH_PRIME32_1;
// XXH32_round
v3 += *((uint*)(ptr + 8)) * XXH_PRIME32_2;
v3 += reg3 * XXH_PRIME32_2;
v3 = (v3 << 13) | (v3 >> (32 - 13));
v3 *= XXH_PRIME32_1;
// XXH32_round
v4 += *((uint*)(ptr + 12)) * XXH_PRIME32_2;
v4 += reg4 * XXH_PRIME32_2;
v4 = (v4 << 13) | (v4 >> (32 - 13));
v4 *= XXH_PRIME32_1;

36
src/Standart.Hash.xxHash/__inline__xxHash64.cs
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@@ -27,29 +27,31 @@ public partial class xxHash64
do
{
var reg1 = *((ulong*)(input + 0));
var reg2 = *((ulong*)(input + 8));
var reg3 = *((ulong*)(input + 16));
var reg4 = *((ulong*)(input + 24));
// XXH64_round
v1 += *((ulong*) input) * XXH_PRIME64_2;
v1 += reg1 * XXH_PRIME64_2;
v1 = (v1 << 31) | (v1 >> (64 - 31));
v1 *= XXH_PRIME64_1;
input += 8;
// XXH64_round
v2 += *((ulong*) input) * XXH_PRIME64_2;
v2 += reg2 * XXH_PRIME64_2;
v2 = (v2 << 31) | (v2 >> (64 - 31));
v2 *= XXH_PRIME64_1;
input += 8;
// XXH64_round
v3 += *((ulong*) input) * XXH_PRIME64_2;
v3 += reg3 * XXH_PRIME64_2;
v3 = (v3 << 31) | (v3 >> (64 - 31));
v3 *= XXH_PRIME64_1;
input += 8;
// XXH64_round
v4 += *((ulong*) input) * XXH_PRIME64_2;
v4 += reg4 * XXH_PRIME64_2;
v4 = (v4 << 31) | (v4 >> (64 - 31));
v4 *= XXH_PRIME64_1;
input += 8;
input += 32;
} while (input < limit);
h64 = ((v1 << 1) | (v1 >> (64 - 1))) +
@@ -134,29 +136,31 @@ public partial class xxHash64
do
{
var reg1 = *((ulong*)(ptr + 0));
var reg2 = *((ulong*)(ptr + 8));
var reg3 = *((ulong*)(ptr + 16));
var reg4 = *((ulong*)(ptr + 24));
// XXH64_round
v1 += *((ulong*) ptr) * XXH_PRIME64_2;
v1 += reg1 * XXH_PRIME64_2;
v1 = (v1 << 31) | (v1 >> (64 - 31));
v1 *= XXH_PRIME64_1;
ptr += 8;
// XXH64_round
v2 += *((ulong*) ptr) * XXH_PRIME64_2;
v2 += reg2 * XXH_PRIME64_2;
v2 = (v2 << 31) | (v2 >> (64 - 31));
v2 *= XXH_PRIME64_1;
ptr += 8;
// XXH64_round
v3 += *((ulong*) ptr) * XXH_PRIME64_2;
v3 += reg3 * XXH_PRIME64_2;
v3 = (v3 << 31) | (v3 >> (64 - 31));
v3 *= XXH_PRIME64_1;
ptr += 8;
// XXH64_round
v4 += *((ulong*) ptr) * XXH_PRIME64_2;
v4 += reg4 * XXH_PRIME64_2;
v4 = (v4 << 31) | (v4 >> (64 - 31));
v4 *= XXH_PRIME64_1;
ptr += 8;
ptr += 32;
} while (ptr < limit);
}
}

10
src/Standart.Hash.xxHash/xxHash32.XXH.cs
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@@ -6,11 +6,11 @@ namespace Standart.Hash.xxHash;
public static partial class xxHash32
{
private const uint XXH_PRIME32_1 = 2654435761U;
private const uint XXH_PRIME32_2 = 2246822519U;
private const uint XXH_PRIME32_3 = 3266489917U;
private const uint XXH_PRIME32_4 = 668265263U;
private const uint XXH_PRIME32_5 = 374761393U;
private static readonly uint XXH_PRIME32_1 = 2654435761U;
private static readonly uint XXH_PRIME32_2 = 2246822519U;
private static readonly uint XXH_PRIME32_3 = 3266489917U;
private static readonly uint XXH_PRIME32_4 = 668265263U;
private static readonly uint XXH_PRIME32_5 = 374761393U;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static uint XXH_rotl32(uint x, int r)

10
src/Standart.Hash.xxHash/xxHash64.XXH.cs
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@@ -6,11 +6,11 @@ namespace Standart.Hash.xxHash;
public static partial class xxHash64
{
private const ulong XXH_PRIME64_1 = 11400714785074694791UL;
private const ulong XXH_PRIME64_2 = 14029467366897019727UL;
private const ulong XXH_PRIME64_3 = 1609587929392839161UL;
private const ulong XXH_PRIME64_4 = 9650029242287828579UL;
private const ulong XXH_PRIME64_5 = 2870177450012600261UL;
private static readonly ulong XXH_PRIME64_1 = 11400714785074694791UL;
private static readonly ulong XXH_PRIME64_2 = 14029467366897019727UL;
private static readonly ulong XXH_PRIME64_3 = 1609587929392839161UL;
private static readonly ulong XXH_PRIME64_4 = 9650029242287828579UL;
private static readonly ulong XXH_PRIME64_5 = 2870177450012600261UL;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static ulong XXH_rotl64(ulong x, int r)