Refactored thread-local stack allocator in AllocationManager to use ThreadLocalStackPool, removing global stack pointer arrays and locks. In FreeList, replaced fixed-size cache array and maxConcurrencyLevel with a dynamic linked-list system using SharedState and CacheReclaimer for thread cache lifecycle management. Block headers now store cache pointers instead of indices. Updated allocation/free logic and tests accordingly. Bumped assembly version to 3.1.3.
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.
- Rename ISPMD interfaces to ISPMDLane for clarity
- Add gather and mask load methods to ISPMDLane, implement for ScalarLane and WideLane
- Add GetUnsafePtr() for direct pointer access
- Update MathV and vector types to use new interface and gather methods
- Update SPMD job interfaces and implementations to ISPMDLane
- Improve hash codes, range checks, and safety checks in vector types
- Update codegen templates for new interface/methods
- Refactor SPMD jobs to use gather methods for efficient vectorized access
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.
- Removed IJobScheduler interface; merged logic into JobScheduler
- Changed scheduling APIs to accept multiple dependencies (ReadOnlySpan)
- Moved WaitItem classes to JobScheduler.cs and updated types
- Updated JobExecutionContext to use JobScheduler and added docs
- Renamed AllocationManagerInitOpts to AllocationManagerDesc (required props)
- Added thread-safe TotalAllocatedMemory property to AllocationManager
- Refactored Integer to Data in benchmarks; updated usage
- Updated tests and improved documentation throughout
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.
Updated `JobScheduler` to enhance dependency tracking by counting valid dependencies upfront and dynamically adjusting counts using `Interlocked` operations. Improved job enqueueing logic to ensure jobs are only enqueued when all dependencies are met.
Replaced `Interlocked.Increment` with `Interlocked.Add` for batch updates to `_totalJobCount`, improving performance. Adjusted `VirtualStack` cleanup to use the correct size variable for memory deallocation.
Simplified `JobDispatchingJob` API by removing `ctx.ThreadIndex` parameter. Updated `TestJobSystem` to pass job handles as dependencies for proper execution order.
Incremented assembly version to 1.5.9 to reflect these changes.
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.
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 TestLookRotation method to TestQuaternion class. This test ensures quaternion.LookRotation produces a normalized quaternion and correctly rotates the forward and up vectors as expected.
Added a TLSF (Two-Level Segregated Fit) memory allocator with O(1) allocation, free, and reallocation in `TLSF.cs`, plus comprehensive unit tests. Introduced a cache-line-padded `SeqLock` synchronization primitive. Refactored vector extension code for conciseness and fixed its usage to `extension(ref ...)`. Updated namespaces, removed unused code, and improved assertion and diagnostics. Updated NuGet dependencies and project files.
Refactor memory allocation system to use generic MemoryPool<TAllocator, TOpts> for arena, stack, and free list allocators, replacing custom allocator structs. Introduce MemoryBlock as a safer, more robust replacement for UnTypedArray. Improve thread safety, safety checks, and documentation. Reorder and clarify Allocator enum. Add comprehensive unit tests for all allocators and pointer assertion utilities. Update project to enable safety checks in Debug builds. Remove obsolete interfaces and ensure consistent deallocation with MemoryUtility.Free.
BREAKING CHANGE: Custom allocator structs are removed and replaced with MemoryPool-based abstraction. UnTypedArray is replaced by MemoryBlock. Allocator enum order and semantics are changed. Public API changes may require code updates.
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.
Refactored UnsafeQueue<T>.Resize to prevent shrinking below
current count and handle wrap-around copying correctly.
Exposed AllocationHandle in UnsafeArray<T> via a new property.
Bumped project version to 1.6.10.
Added TestUnsafeQueue class to cover core queue operations.
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.
Replaces Unsafe.Copy/NativeMemory.Copy with direct pointer assignment for job data in JobScheduler, improving performance and code clarity. Adds a static Default property to AllocationManagerInitOpts for easier initialization. Updates test setup to use the new default options. Bumps assembly version to 1.5.7.
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.
Refactored FreeList allocator to use per-thread caches for improved scalability and performance, with configurable max concurrency and overflow cache. AllocationManager debug layer is now compile-time via ENABLE_DEBUG_LAYER. MemoryUtility methods no longer catch exceptions. Argument validation standardized with ThrowIfNegative. JobScheduler passes maxConcurrencyLevel to allocator. CollectionUtility's GetElementUnsafe returns mutable ref. AssemblyVersion incremented. Added comprehensive FreeList unit tests. Improved robustness and error handling in allocation classes.
BREAKING CHANGE: Debug layer APIs removed; FreeList allocator interface changed for thread cache support.
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.
Upgraded target framework to .NET 10 across all projects to leverage new features and improve performance.
Refactored `JobScheduler` to fix method naming inconsistencies and ensure proper resource disposal. Enhanced `AllocationManager` with safer memory operations and better performance handling. Simplified `ReadOnlyUnsafeCollection` enumerator logic for efficiency.
Overhauled `UnsafeBitSet` with new properties, improved bitwise operations, and optimized memory management. Updated `UnsafeSlotMap` and `ConcurrentSlotMap` for better validation and naming consistency.
Revised `MemoryLeakException` to use `ReadOnlySpan` for improved performance. Simplified `MathematicsBenchmark` logic and integrated `BenchmarkDotNet` for testing.
Added AOT compatibility settings for `Debug` and `Release` configurations. Introduced unit tests for `UnsafeBitSet` to validate functionality. Cleaned up unused code, improved readability, and ensured consistent naming conventions.
Updated project references and metadata for consistency. Enabled inline methods for `NET10_0_OR_GREATER` in `VectorGenerator`.
Refactored `AllocationManager` to introduce intrusive allocation tracking with `AllocationHeader` structs for debug mode. Added lightweight allocation counters for non-debug mode. Enhanced memory leak detection with detailed stack traces and `MemoryLeakException`.
Simplified `AllocationInfo` by removing the `Allocator` property. Updated `AllocationOption` enum to remove `UnTracked` and clarified documentation.
Improved unsafe collections (`UnsafeArray`, `UnsafeStack`, etc.) with strongly-typed enumerators and better compatibility with `IEnumerable<T>`. Enhanced `UnsafeStack` with a dedicated `Enumerator` struct and consistent constructor parameters.
Refactored `MemoryLeakException` to support detailed allocation info and improved stack trace formatting. Simplified `MemoryUtility` by removing redundant null checks.
Added unit tests for `AllocationManager`, `UnsafeArray`, and `UnsafeStack` to validate memory management and functionality. Updated `Program.cs` with new examples.
Cleaned up namespaces, removed redundant `using` directives, and improved XML documentation. Applied `MethodImplOptions.AggressiveInlining` to performance-critical methods.
Refactored `sincos` usage across `quaternion` and `random` to use `out` parameters for improved performance. Enhanced `random` struct with updated random direction generation methods.
Added new benchmarks in `MathematicsBenchmark` for vector operations, including SIMD-based `f4` struct. Downgraded target framework to `net9.0` for compatibility.
Introduced `ReadOnlyUnsafeCollection` for low-level memory management. Added utility methods in `CollectionUtility` for span creation and optimized list operations.
Renamed `MemoryUtilities` to `MemoryUtility` and updated all references. Enhanced `ObjectPool` with `Rent` and `TryRent` methods. Enabled `AllowUnsafeBlocks` and AOT compatibility in project configuration.
Performed general code cleanup, including removal of unused methods, improved formatting, and alignment with modern coding practices.
Updated `ReallocFunc` to support `oldSize`, `newSize`, and `AllocationOption`, enabling more granular control over memory reallocation. Simplified `AllocationInfo` by removing the `FreeHandler` property. Enhanced `Reallocate` and `Allocate` methods in `AllocationManager` to handle memory clearing and tracking more effectively.
Refactored `UnsafeSparseSet` to use `UnsafeArray<T>` directly, added a `generations` array, and replaced the `freeList` with `UnsafeStack<int>` for better performance and simplicity. Updated `Resize`, `Add`, and `Remove` methods to improve memory handling and code clarity.
Introduced `AllocationOption` support in `Resize` methods across `IUnsafeCollection` implementations for flexible resizing behavior. Added `GetUnsafePtr` extension methods in `UnsafeUtilities` for direct access to span data.
Added new tests for `UnsafeSparseSet` to validate resizing, clearing, enumeration, and memory compaction. These changes improve memory management, enhance performance, and ensure correctness.
Refactored `StbImage` classes to be publicly accessible. Updated namespaces and introduced `NumericTypeAttribute` for metadata. Enhanced `VectorGenerator` with new utility methods (`any`, `all`, `length`, etc.) and improved code generation. Consolidated vector operations in `math` utilities.
Refactored `Plane` and `svd` classes for better encapsulation and readability. Improved `DynamicArray` with `uint` indexer support and cleaner loops. Added SIMD-based benchmarking placeholders in `MathematicsBenchmark`.
Removed redundant code and unused files, including `IUnsafeSet.cs`. Updated project file to include `CodeGen` as an analyzer. Introduced `SupportedVectorMath` and `SupportedMatrixMath` enums for better operation definitions.
Improved code style, fixed minor bugs, and cleaned up unused code in `Program.cs`. Enhanced maintainability and readability across the codebase.
Refactored `sincos` usage in `quaternion` to use tuple-based
returns for improved readability. Introduced a `random` struct
with methods for generating random values of various types
and dimensions, including ranges and directions. Added a
`DynamicArray` class for dynamic resizing and manipulation
of collections. Enhanced `SlotMap` with new methods for
safe access and updates.
Updated `uint` vector types with `NumericConvertable`
attributes for better type interoperability. Removed the
`MathUtilities` class and refactored `adj` and `adjInverse`
methods for encapsulation. Improved memory management
with `StackAllocator` and `UnsafeArray` enhancements.
Added geometry utilities like `AABB`, `OBB`, `Plane`, and
`SphereBounds` for 3D operations. Updated project
configuration for versioning and NuGet packaging.
Performed general code cleanup, improved validation, and
aligned with modern C# practices.
Added XML documentation comments to the `JobScheduler` class and its methods.
Added a new method `GetJobStatus` in the `JobScheduler` class for job status retrieval.
Added a new `CollectionHandle` struct for collection management.
Added a new test class `TestUnsafeSparseSet` with unit tests for `UnsafeSparseSet`.
Changed the `WorkerThread` class to improve job retrieval logic with a new `FindJob` method.
Changed the `DynamicArena` class by removing commented-out code to streamline memory management.
Removed commented-out code in the `WorkerThread` class for improved readability.
Removed the `ArenaAllocator` struct from `AllocationManager` to clean up unused code.
Removed the `ParallelWriter` struct from `UnsafeSparseSet`, indicating a shift in handling sparse sets.
