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Improve performance of Tar library#74281

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carlossanlop merged 21 commits intodotnet:maindotnet/runtime:mainfrom stephentoub:tarperfstephentoub/runtime:tarperfCopy head branch name to clipboardAug 21, 2022

+512-577

Commits

Commits on Aug 19, 2022

• Avoid unnecessary byte[] allocations

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  d52d836

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• Remove unnecessary use of FileStreamOptions

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  1e5020e

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• Clean up Dispose{Async} implementations

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  6938c77

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• Clean up unnecessary consts

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• Remove MemoryStream/Encoding.UTF8.GetBytes allocations, unnecessary async variants, and overhaul GenerateExtendedAttributesDataStream

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  8dd0ac1

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• Avoid string allocations in ReadMagicAttribute

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• Avoid allocation in WriteAsOctal

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• Improve handling of octal

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  df2d742

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• Avoid allocation for version string

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• Removing boxing and char string allocation in GenerateExtendedAttributeName

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  5756a8c

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• Fix a couple unnecessary dictionary lookups

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  9539a4a

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• Replace Enum.HasFlag usage

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  74bbc9c

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• Remove allocations from Write{Posix}Name

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  46e0855

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• Replace ArrayPool use with string.Create

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• Replace more superfluous ArrayPool usage

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Commits on Aug 20, 2022

• Remove ArrayPool use from System.IO.Compression.ZipFile

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  add6179

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• Fix inverted condition

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  6f8cb75

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• Use generic math to parse octal

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  827a588

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• Remove allocations from StringReader and string.Split

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  ae21478

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• Remove magic string allocation for Ustar when not V7

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  d6b6727

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• Remove file name and directory name allocation in GenerateExtendedAttributeName

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  480af5c

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