Introduced high-performance UnsafeChunkedList<T> with parallel-safe add/read, custom enumerator, and chunk management. Added extensive unit tests for all behaviors and concurrency. Refactored AllocationManager zero-replacement logic, improved MemoryUtility alignment methods, and clarified MemoryBlock/UnsafeArray docs. Simplified Program.cs allocation test and updated build constants. Minor cleanups in GGXMipGenerationBenchmark.
Replaced HasFlag with HasOption for allocation flags to avoid boxing and improve performance. Added AllocationOptionExtensions. Reduced FreeListChunkSize default. Removed redundant allocation handle checks. Renamed MultipleAdd to MultiplyAdd in SPMD interfaces and implementations, updating all usages. Expanded SPMD lane interface with new mask/scatter methods and XML docs. Updated GGX jobs and allocation tests. Bumped assembly versions.
- Introduced TLSF allocator with thread-safe wrapper and integrated into AllocationManager.
- Extended AllocationManagerDesc for TLSF config; made properties settable.
- Refactored AllocationHandle to encapsulate function pointers and state, replacing direct field access with methods.
- Updated all memory-related structs to use new AllocationHandle API.
- Added ReplaceIfZeros utility to MemoryUtility.
- Improved IndexOfNullByte performance.
- Minor fix in MemoryLeakException output order.
- FreeList now uses a fixed 64KB refill budget.
- Bumped version to 1.6.21; removed MHP_ENABLE_STACKTRACE from Debug.
- Updated Program.cs to test TLSF allocator and manage allocation lifecycle.
- Increased BlockHeader size, added blockStart, and improved alignment logic in FreeList allocator.
- Changed _MIN_BLOCK_SIZE to 32 and consolidated to a single implementation.
- Updated allocation and free logic for correct pointer alignment and header management.
- MemoryUtility now throws OutOfMemoryException on allocation failure.
- Optimized GGXMipGenerationBenchmark SPMD output with MaskScatter and minor math/cleanup improvements.
- Cleaned up Program.cs and enabled global/test initialization.
- Bumped assembly version to 1.6.19.
- Change IJobSPMD.Execute to (indices, mask, ctx) signature for all arities, enabling proper vectorized/masked SPMD execution.
- Update all SPMD job wrappers, extension methods, and test jobs to use new interface.
- Add AVX2 gather/masked gather support to MathV.GatherVector2/3/4 and related methods; use [ConstantExpected] byte scale.
- Improve gather/select logic, pointer arithmetic, and overloads for ref/int* index access.
- Refactor GGXMipGenerationBenchmark and jobs for SPMD, with per-mip-level vectorized jobs and improved memory access.
- Clean up code, fix naming, update comments, and bump version to 1.3.6.
Removed unmanaged struct requirement from SPMD job wrappers and extension methods, allowing managed types. Updated all wrappers and extension methods to require only the interface constraint. Refactored SPMD test jobs to use safe ref-based Store overloads. Improved README and docs with clearer debug/mimalloc instructions and a better SPMD example. Cleaned up Program.cs by removing obsolete experimental code. Enhanced math precision in GGXMipGenerationBenchmark. Updated T4 template to generate new constraints and APIs.
- Require TLane : unmanaged, ISPMDLane for stricter type safety and direct memory ops
- Refactor GatherVectorN and WideLane<T>.Gather to use Unsafe.SkipInit and direct assignment, removing stackalloc and TLane.Load for better SIMD performance
- Use Vector.Sum in WideLane<T>.ReduceAdd
- Add/improve XML docs for ReduceAdd/ReduceMax/ReduceMin
- Update test project for AOT, AVX2, speed optimization, and disable reflection
- Tweak GGXMipGenerationBenchmark and Program.cs for improved benchmarking and output
- Replaced SIMD-based Sin/Cos/SinCos in WideLane with generic polynomial approximations for hardware independence.
- Updated ScalarLane Cast to use CreateTruncating.
- Applied AggressiveOptimization to key GGX methods; improved luma calculation and radical inverse LUT handling.
- Enhanced GGX benchmark setup, cleanup, and timing logic.
- Bumped project version to 1.3.1.
Major refactor of job system and memory allocator:
- Replaced threadIndex with preferLocal for scheduling
- Switched local queues to SPMCQueue for better performance
- Introduced lock-free JobEdge pool for dependencies
- Removed remainingBatches; use ref counting for completion
- Updated all scheduling APIs and tests to new model
- Optimized FreeList struct sizes and block management
- Added allocation benchmarks
- Disabled OwnershipTransferAnalyzer temporarily
- Bumped assembly versions
Replaces unsafe pointer-based job data with JobDataPool<T> and ConcurrentSlotMap<T> for safer, type-safe management. JobInfo now references job data by (dataID, dataGeneration). JobExecutor and JobScheduler updated to use the new pool-based approach, requiring T : struct. Removed FreeList and pointer logic. WorkerThread now uses reference counting to prevent use-after-free. Updated all scheduling APIs and benchmarks to match new signatures. Improved documentation and inlining. Bumped assembly version to 3.0.0 due to breaking changes.
Major refactor:
- Add job priority tiers and async wait APIs to IJobScheduler
- Implement priority-based job queues and scheduling logic
- Introduce UnsafeParallelHashMap and refactor UnsafeParallelQueue
- Refactor UnsafeSlotMap to chunked storage for scalability
- Update SlotMap/ConcurrentSlotMap for consistency and perf
- Add new benchmarks and unit tests for parallel collections
- Misc: add MemoryUtility.AlignUp, version bumps, test improvements, bug fixes
- Refactored JobExecutionContext to use init-only properties and added State and SelfHandle for richer context.
- Updated JobInfo field layout for clarity and memory alignment.
- JobScheduler now accepts and exposes an optional state object, passed to each job context.
- Improved memory management by using _freeList for allocations and disposal.
- WorkerThread and benchmarks updated to use new JobExecutionContext pattern.
- Bumped version to 1.6.1 and performed minor code cleanup.
Replaced the deprecated Allocator API with the new AllocationHandle API across the codebase. Updated constructors, methods, and tests to use AllocationHandle for memory management. Marked Allocator-based methods as [Obsolete] and provided alternatives.
Added OwnershipTransferAnalyzer to detect ownership transfer issues and introduced OwnershipTransferAttribute for marking parameters. Enhanced DefensiveCopyAnalyzer with additional checks for readonly and ValueType instances.
Refactored internal memory management in AllocationManager and updated benchmarks, utilities, and documentation to reflect the changes.
BREAKING CHANGE: Deprecated Allocator API in favor of AllocationHandle. Updated constructors and methods to use AllocationHandle. Users must migrate to the new API.
Refactored memory management by removing safety checks and introducing `MemoryHandle` for centralized tracking. Simplified allocation logic across allocators and enhanced `Dispose` methods for better resource cleanup.
Added `UnsafeChunkedQueue<T>`, a lock-free, dynamically resizing queue with chunk-based memory management, supporting parallel producers and consumers.
Updated unit tests to validate new queue functionality and ensure compatibility with refactored memory logic. Incremented assembly version to 1.6.12.
BREAKING CHANGE: Removed `#if MHP_ENABLE_SAFETY_CHECKS` blocks, altering memory validation behavior.
Refactored UnsafeBitSet.Iterator to store a pointer to the bitset and accept a start index in its constructor. Updated GetIterator to support an optional start parameter and return an iterator using a pointer to the current instance. Revised Program.cs to demonstrate new usage and removed unrelated code. Bumped assembly version to 1.6.11.
Fixed conditional selection logic in quaternion and SVD math functions by swapping select argument order for correctness. Fixed LookRotationSafe and normalizesafe to return valid quaternions. Corrected SVD helper functions for proper value swapping and safe reciprocal. Added unit tests for matrix, reflection, projection, refraction, quaternion normalization, LookRotationSafe, and SVD operations. Incremented project version to 1.3.3. Minor formatting and using directive updates.
Added [NumericConvertable] attributes for scalar type conversions to all vector structs. Fixed bitwise mask calculation in quaternion.cs for improved correctness. Updated Program.cs with quaternion test code and bumped project version to 1.3.2.
Introduce a unified Reallocate method to all memory allocator types (Arena, Stack, FreeList, VirtualArena, VirtualStack, DynamicArena) and require it in the IMemoryAllocator interface. This enables efficient resizing of memory blocks, with fast-path optimizations for stack-like allocators.
Update AllocationManager and MemoryPool to use the new Reallocate method, simplifying and optimizing memory resizing logic. Add public properties for buffer pointers, sizes, and offsets to allocator structs for easier diagnostics.
Set FreeList's default concurrency level to 1 and make its allocation method return null on dispose instead of throwing. Clean up vector types for formatting, fix UnsafeList's RemoveRangeSwapBack logic, and simplify RemoveAtSwapBack.
Simplify Program.cs to only run SPMDBenchmark. Add new unit tests for FixedString, UnsafeList, UnsafeHashMap, and UnsafeHashSet. Apply minor test code cleanups for consistency in TestUnsafeQueue.
BREAKING CHANGE: IMemoryAllocator now requires a Reallocate method, and allocator APIs have changed accordingly.
Added scalar operator overloads for Vector types, fixed pointer math in Store methods, and improved enumerator and memory management. Updated test setup and removed allocation leak tests.
- Added left-hand scalar operator overloads for Vector2/3/4.
- Fixed pointer arithmetic in Store and GetUnsafePtr methods.
- Marked SetValue as readonly in UnsafeSparseSet.
- Improved enumerator initialization/reset for slot map and sparse set.
- Updated test projects' AssemblyVersion.
- Removed TestAllocationManager and added global AllocationManager setup/teardown.
- Updated TestConcurrentSlotMap for thread safety and correct cancellation.
- Minor formatting and parameter improvements.
Stack and VirtualStack Free methods now check pointer bounds and update offsets only when appropriate, improving safety. Program.cs refactored to use MemoryPool with VirtualStack and new test methods. Assembly version bumped to 1.6.7.
Add AllocationManager.GetTotalAllocatedMemory() to track total allocations when safety checks are enabled. Improve diagnostics by calling Debug.Fail in Dispose methods of HashMapHelper, UnTypedArray, and UnsafeArray when disposing uninitialized or already disposed arrays. Remove AddRange(ReadOnlyUnsafeCollection<T>) from UnsafeList<T>. Increment assembly version to 1.6.4. Ensure arrcpy is disposed in Program.cs.
Refactor to use MHP_ENABLE_SAFETY_CHECKS, MHP_ENABLE_STACKTRACE, and MHP_ENABLE_MIMALLOC for feature toggling. Remove FreeList allocator in JobSchedular and debug-layer code, simplifying memory management. Improve memory leak detection and reporting, update memory allocation API, and guard all safety/debug features with new defines. Update csproj files, README, and code samples to match new API and toggles. Fix and improve collection types for correct behavior with and without safety checks. The codebase is now more modular and easier to configure for different build environments.
BREAKING CHANGE: Old defines (ENABLE_SAFETY_CHECKS, ENABLE_DEBUG_LAYER, ENABLE_MIMALLOC) are replaced with MHP_* equivalents. FreeList allocator and related debug features are removed. Some APIs and behaviors have changed for safety/debug configuration.
CopyTo, CopyFrom, ToArray, and ToList are now implemented as instance methods on UnsafeArray<T> and UnsafeList<T>, replacing the previous extension methods. This change enables more direct and efficient copying between unsafe collections and managed spans, arrays, and lists, with overloads for ranges and resizing as needed. Extension methods for these operations have been removed. Minor cleanup and usage updates are included.
BREAKING CHANGE: Extension methods for copying and converting between unsafe collections and spans/arrays/lists have been removed. Use the new instance methods instead.
Adds a debug layer for memory allocation tracking, enabled in DEBUG builds via ENABLE_DEBUG_LAYER. When active, allocations and reallocations in FreeListAllocator store stack traces and maintain linked lists of allocation headers for enhanced debugging. Memory is optionally cleared on allocation, and debug metadata is properly cleaned up on free. Updates allocation logic to support debug and non-debug modes. Also updates AssemblyVersion to 1.5.4 and revises Program.cs to use the new allocation manager initialization and FreeList allocator.
Introduce VirtualStack allocator, refactor memory management to use virtual memory stacks, and update documentation.
Added VirtualStack as a new stack allocator using virtual memory, replaced Stack with VirtualStack in allocation manager and related APIs, and updated TempJobAllocator to use VirtualArena. Introduced AllocationManagerInitOpts for allocator configuration. Replaced ENABLE_COLLECTION_CHECKS with ENABLE_SAFETY_CHECKS for safety checks. Removed Result.cs and updated project files and examples. Added comprehensive README files for all major packages and improved root documentation.
BREAKING CHANGE: Stack allocator replaced by VirtualStack; TempJobAllocator and AllocationManager initialization signatures changed; Result types removed.
Refactored Arena, DynamicArena, FreeList, and Stack to implement the new IMemoryAllocator<TSelf, TOpts> interface, standardizing allocation and free methods. Introduced MemoryPool<T, TOpts> for allocator lifetime management and AllocationHandle access. Updated Program.cs to use MemoryPool, replacing AllocationManager. Minor project file updates included.
Introduce VirtualArena for large, thread-safe virtual memory allocation and FreeList allocator for efficient persistent allocations. Update AllocationManager to support new allocators, add cross-platform virtual memory utilities, and improve thread-safety and performance in existing allocators. Bump version to 1.5.0 and update project configuration.
BREAKING CHANGE: AllocationManager initialization now requires explicit parameters for arena and FreeList capacities. Existing allocator usage may require code changes.
Major breaking change: job interfaces now use JobExecutionContext
instead of threadIndex, enabling thread-aware and dynamic job
dispatching. Updated all job system, SPMD, and test code to match.
Collections improved with new methods and clearer enumerators.
Renamed IJobScheduler.WaitComplete to Wait. Incremented project
versions. Includes bug fixes, documentation, and style updates.
- Add new SPMD SIMD math project with scalar/vector lanes
- Integrate SPMD jobs and scheduling into job system
- Implement lock-free job dependency management
- Update math functions for .NET 10 and SIMD performance
- Add SPMD benchmarks, compress-store tests, and race tests
- Introduce generic Result<T> error handling utilities
- Solution/project file updates and code cleanup
- Reserve index 0 as always invalid in SlotMap, ConcurrentSlotMap, UnsafeSlotMap, and UnsafeSparseSet; update all index checks and slot operations accordingly
- Refactor SlotMap to use parallel arrays and BitArray for occupancy
- Double capacity on resize for all major unsafe collections
- Add debugger display support for unsafe collections
- Improve NuGet publishing workflow to skip existing versions
- Increment package versions (LowLevel: 1.3.1, main: 1.0.2)
- Add comprehensive unit tests for SlotMap and ConcurrentSlotMap
- Update main program and documentation for new slot map behavior
Added new AllocationHandle property in Stack.Scope.
Changed the ref AllocationHandle constructor parameter to AllocationHandle on of all UnsafeCollection types
Removed Allocator.Stack. Use Stack.Scope.AllocationHandle to allocate on stack instead.
Replaced `SafeHandle` with a new `MemoryHandle` system for improved memory tracking, safety, and leak detection. Updated allocators (`ArenaAllocator`, `HeapAllocator`, `StackAllocator`) and collections (`UnTypedArray`, `UnsafeArray<T>`, `UnsafeBitSet`) to use `MemoryHandle`.
Refactored `AllocationManager` to use `ConcurrentSlotMap` for live allocation tracking and added methods for managing `MemoryHandle` instances. Simplified alignment and padding logic across allocators and collections.
Enhanced performance with optimized memory operations (`MemClear`, `MemSet`, `MemCpy`) and vectorized operations in `MemoryUtility` and `UnsafeBitSet`. Fixed alignment issues in vectorized memory operations.
Updated tests to reflect the new memory management system and added new tests for `UnsafeBitSet` bitwise operations. Enabled `ENABLE_COLLECTION_CHECKS` for debug builds and improved error messages and documentation.
Removed unused `SafeHandle` code and adjusted project configuration to include necessary references.
