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Nitload Youmu
2025-08-21 16:51:25 +08:00
commit 43bbc06bbb
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.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/824554993253182192F9FC3EA6212052
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Use binary operations to find the appropriate level
// Level sizes follow pattern: 64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
// These correspond to: 2^6, 2^8, 2^10, 2^12, 2^14, 2^16, 2^18, 2^20, 2^22, 2^24
// Find the position of the highest set bit (equivalent to floor(log2(size)))
int msb = 31 - System.Numerics.BitOperations.LeadingZeroCount(size);
// Convert MSB position to level index using bit manipulation
// MSB: 6->0, 7->0, 8->1, 9->1, 10->2, 11->2, 12->3, 13->3, etc.
// Pattern: level = max(0, (msb - 6) >> 1)
int level = Math.Max(0, (msb - 6) >> 1);
// Clamp to valid range
return Math.Min(level, levelSize.Length - 1);
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/954EBDC2FEAB07F497506A52718927D4
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Use binary operations to find the appropriate level
// Level sizes follow pattern: 64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
// These correspond to: 2^6, 2^8, 2^10, 2^12, 2^14, 2^16, 2^18, 2^20, 2^22, 2^24
// Find the position of the highest set bit (equivalent to floor(log2(size)))
int msb = 31 - System.Numerics.BitOperations.LeadingZeroCount(size);
// Convert MSB position to level index using bit manipulation
// MSB: 6->0, 7->0, 8->1, 9->1, 10->2, 11->2, 12->3, 13->3, etc.
// Pattern: level = max(0, (msb - 6) >> 1)
int level = Math.Max(0, (msb - 6) >> 1);
// Clamp to valid range
return Math.Min(level, levelSize.Length - 1);
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/9B426B200587B35E662E551C35153B5E
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
/*
rebuild by using binary operations
*/
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Find the appropriate level for the given size
for (int i = 0; i < levelSize.Length - 1; i++)
{
if (size <= levelSize[i]) {
return i;
}
}
// If size is larger than all predefined levels, use the last level
return levelSize.Length - 1;
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/A74D8A4487C885B30AE73AC39AAC9803
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Use binary operations to find the appropriate level
// Level sizes are powers of 2: 64(2^6), 256(2^8), 1024(2^10), etc.
// We can use bit operations to efficiently determine the level
// Find the position of the highest set bit (equivalent to log2)
int msb = 31 - System.Numerics.BitOperations.LeadingZeroCount(size);
// Map bit position to level index
// Level 0: 64 (2^6) -> msb = 6
// Level 1: 256 (2^8) -> msb = 8
// Level 2: 1024 (2^10) -> msb = 10
// Pattern: level = (msb - 6) / 2, but we need to handle boundaries
if (msb <= 6)
{
return 0; // size <= 64
}
if (msb <= 7)
{
return 0; // size <= 128, still fits in level 0 (64-256)
}
if (msb <= 8)
{
return 1; // size <= 256
}
if (msb <= 9)
{
return 1; // size <= 512, still fits in level 1 (256-1024)
}
if (msb <= 10)
{
return 2; // size <= 1024
}
if (msb <= 11)
{
return 2; // size <= 2048, still fits in level 2 (1024-4096)
}
if (msb <= 12)
{
return 3; // size <= 4096
}
if (msb <= 13)
{
return 3; // size <= 8192, still fits in level 3 (4096-16384)
}
if (msb <= 14)
{
return 4; // size <= 16384
}
if (msb <= 15)
{
return 4; // size <= 32768, still fits in level 4 (16384-65536)
}
if (msb <= 16)
{
return 5; // size <= 65536
}
if (msb <= 17)
{
return 5; // size <= 131072, still fits in level 5 (65536-262144)
}
if (msb <= 18)
{
return 6; // size <= 262144
}
if (msb <= 19)
{
return 6; // size <= 524288, still fits in level 6 (262144-1048576)
}
if (msb <= 20)
{
return 7; // size <= 1048576
}
if (msb <= 21)
{
return 7; // size <= 2097152, still fits in level 7 (1048576-4194304)
}
if (msb <= 22)
{
return 8; // size <= 4194304
}
if (msb <= 23)
{
return 8; // size <= 8388608, still fits in level 8 (4194304-16777216)
}
// If size is larger than all predefined levels, use the last level
return levelSize.Length - 1;
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/ADDA6C2F849AB70C1E1D33E9EA739FE1
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Use binary operations to find the appropriate level
// Level sizes are powers of 2: 64(2^6), 256(2^8), 1024(2^10), etc.
// We can use bit operations to efficiently determine the level
// Find the position of the highest set bit (equivalent to log2)
int msb = 31 - System.Numerics.BitOperations.LeadingZeroCount(size);
// Map bit position to level index
// Level 0: 64 (2^6) -> msb = 6
// Level 1: 256 (2^8) -> msb = 8
// Level 2: 1024 (2^10) -> msb = 10
// Pattern: level = (msb - 6) / 2, but we need to handle boundaries
if (msb <= 6)
{
return 0; // size <= 64
}
if (msb <= 7)
{
return 0; // size <= 128, still fits in level 0 (64-256)
}
if (msb <= 8)
{
return 1; // size <= 256
}
if (msb <= 9)
{
return 1; // size <= 512, still fits in level 1 (256-1024)
}
if (msb <= 10)
{
return 2; // size <= 1024
}
if (msb <= 11)
{
return 2; // size <= 2048, still fits in level 2 (1024-4096)
}
if (msb <= 12)
{
return 3; // size <= 4096
}
if (msb <= 13)
{
return 3; // size <= 8192, still fits in level 3 (4096-16384)
}
if (msb <= 14)
{
return 4; // size <= 16384
}
if (msb <= 15)
{
return 4; // size <= 32768, still fits in level 4 (16384-65536)
}
if (msb <= 16)
{
return 5; // size <= 65536
}
if (msb <= 17)
{
return 5; // size <= 131072, still fits in level 5 (65536-262144)
}
if (msb <= 18)
{
return 6; // size <= 262144
}
if (msb <= 19)
{
return 6; // size <= 524288, still fits in level 6 (262144-1048576)
}
if (msb <= 20)
{
return 7; // size <= 1048576
}
if (msb <= 21)
{
return 7; // size <= 2097152, still fits in level 7 (1048576-4194304)
}
if (msb <= 22)
{
return 8; // size <= 4194304
}
if (msb <= 23)
{
return 8; // size <= 8388608, still fits in level 8 (4194304-16777216)
}
// If size is larger than all predefined levels, use the last level
return levelSize.Length - 1;
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/BA33779672F63494302EF1C48E414F30
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
/*
rebuild by using binary operations
*/
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Find the appropriate level for the given size
for (int i = 0; i < levelSize.Length - 1; i++)
{
if (size <= levelSize[i]) {
return i;
}
}
// If size is larger than all predefined levels, use the last level
return levelSize.Length - 1;
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}
.vs/CopilotSnapshots/A161F096D827134994BA9E58738BECBF/E495A6AEE9C2AD408C1782616E92CB4E/FD56A93ACB74ECBD9D8CE1E350D3D444
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//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="HLSFAllocator.Level.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.HighPerformance.Memory
{
public unsafe partial class HybridLayerSegregatedFitAllocator
{
private const int MaxLevel = 9;
private static readonly int[] levelSize = [
64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
];
public int AlignOfLevel(int bucketLevel)
{
int blockSize = levelSize[bucketLevel];
return int.Min(blockSize, _align);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int GetLevelFromSize(uint size)
{
// Ensure minimum size
if (size <= 64)
{
return 0;
}
// Use binary operations to find the appropriate level
// Level sizes follow pattern: 64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
// These correspond to: 2^6, 2^8, 2^10, 2^12, 2^14, 2^16, 2^18, 2^20, 2^22, 2^24
// Find the position of the highest set bit (equivalent to floor(log2(size)))
int msb = 31 - System.Numerics.BitOperations.LeadingZeroCount(size);
// Convert MSB position to level index using bit manipulation
// MSB: 6->0, 7->0, 8->1, 9->1, 10->2, 11->2, 12->3, 13->3, etc.
// Pattern: level = max(0, (msb - 6) >> 1)
int level = Math.Max(0, (msb - 6) >> 1);
// Clamp to valid range
return Math.Min(level, levelSize.Length - 1);
}
}
public enum CommonMemoryAlign : int
{
XMMLevel = 16,
YMMLevel = 32,
ZMMLevel = 64,
ArmNEONLevel = 16,
}
}