Code

Additional Perf. Optimizations#6

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chyyran merged 35 commits intoSnowflakePowered:masterSnowflakePowered/vcdiff:masterfrom Sewer56:masterSewer56/vcdiff:masterCopy head branch name to clipboardNov 23, 2021

+1,335-671

Commits

Commits on Oct 2, 2021

• Added: Basic (Unrealistic) Benchmark for Encoding/Decoding

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  4f0d92f

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• Clean up: Some top level code & unused code.

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• Added: Span Returns for IByteBuffer, Copy whole Source Ahead of Time

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• Added: Ignores for Nullable Checks

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• Added: Support for ByteBuffer source; use int length.

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• Added: SkipLocalsInit for .NET 5 Hot Path Methods

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• Added: Cap Encoder Buffer size at Target

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• Misc Space removal in VcEncoder

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• Added: GC.AllocateUninitializedArray for non-zeroing array alloc.

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• Added: Optimized Vector Fill & Optimized Bounds Checks

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• Improve ByteStreamReader.ReadBytes

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• Cleanup: VCDecoder APIs

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• Optimized: Code Tables

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• Optimize: ByteBuffer AsSpan()

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• Optimize: ByteBuffer PeekBytes()

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• Optimize: ByteStreamReader ReadBytesAsSpan

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• Revert: Share VcDecoder with Async Path

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• Removed: Redundant ByteStreamReader Check on Pos Set

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• Added: Devirtualization to VarIntBE

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• Change AddressCache.FirstNear to Constant

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• ByteBuffer: Added Dispose on Finalizer if Needed

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• Added: AsSpan where AsMemory was used by accident

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• Changed: Ensure Chunker is Disposed

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• Added: Unsafe Tables in BlockHash so other frameworks can benefit perf

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• Changed: Devirtualize VcDecoder

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• Add: Decoder Caching Support & Optimized Calls

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• Changed: Dispose VcDecoderEx only if owns Components

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• Fixed: Don't dispose objects not created by parent.

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Commits on Oct 3, 2021

• Feature: Use Array Rental for Faster Repeat Decode

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• For the sake of my sanity with git. Generate the docs in proper place.

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  7dd621d

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• Fixed: Overflow when numValues * sizeof(long) > max int32

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• Fixed: 4GB+ Allocations

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• Optimise: Decoder Memory & MemoryStream Allocations

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• Remove Redundant Reset call for AddressCache

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• InstructionMap isn't mutable and should be cached.

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