Adam Hathcock
dd6d09c6d2
Reduce allocations in 7z encryption and codec lookup
2026-10-26 13:45:21 +00:00
Adam Hathcock
ba248dc01e
Decode asynchronously buffered LZMA2 chunks with the fast CPU path
2026-10-24 13:37:15 +01:00
Adam Hathcock
ed29acda67
Remove redundant partial modifiers
2026-10-21 09:53:07 +01:00
Adam Hathcock
2463488de7
Merge remote-tracking branch 'origin/master' into feature/non-seekable-zip64-writing
...
# Conflicts:
# src/SharpCompress/Factories/TarFactory.cs
# src/SharpCompress/Readers/Tar/TarReader.Factory.cs
# src/SharpCompress/Readers/Tar/TarReader.cs
# tests/SharpCompress.Test/Streams/RarLifetimeTests.cs
# tests/SharpCompress.Test/Streams/SevenZipLifetimeTests.cs
# tests/SharpCompress.Test/Streams/TarLifetimeTests.cs
2026-10-20 11:41:45 +01:00
Adam Hathcock
bae154799d
Merge pull request #1461 from adamhathcock/perf/zip-profile-pooling
...
Reduce Deflate read and Huffman scratch allocations
2026-10-20 11:05:49 +01:00
Adam Hathcock
c78cc86e04
Avoid temporary allocations in ring-buffered async reads
2026-10-20 10:52:15 +01:00
Adam Hathcock
7731843e25
Reduce Deflate read and Huffman scratch allocations
...
Use a ValueTask read core and memory-based compressed-input refills on modern targets, replace per-block Huffman output arrays with scalar parameters, and decode directly into array-backed caller memory with a pooled fallback.
Preserve generated sync array-read semantics and clear codec output references after reads. Add slice, fallback, cancellation, failure, tree-validation, and read-ahead coverage; document staged ZIP profiles.
Validation: 2,989 .NET 10 tests passed; all library targets, net48 tests, and performance project compile; formatting checks pass.
2026-10-20 09:56:54 +01:00
Adam Hathcock
1ad052edcc
Merge remote-tracking branch 'origin/master' into perf/7zip-profile-pooling
...
# Conflicts:
# src/SharpCompress/Compressors/LZMA/Lzma2EncoderStream.cs
# src/SharpCompress/Compressors/LZMA/LzmaStream.Async.cs
# src/SharpCompress/IO/ReadOnlyMemoryStream.cs
2026-10-20 08:31:32 +01:00
Adam Hathcock
f41cc208cc
Pool LZMA workspaces and streamline 7z metadata writing
...
Reuse LZMA2 trial decoders and pooled compressed output, pool and consolidate decoder probability banks, lazily rent encoder optimization scratch, and avoid copying direct async memory writes.
Use bounded stack scratch and stream 7z metadata without temporary property buffers. Add ownership, failure, context-shrink, Unicode, and block-boundary regressions.
Document allocation profiles, the small-file LZMA2 throughput tradeoff, and rejection of exact-size match-finder arrays. Validation: 3,016 .NET 10 tests passed; all library targets, net48 tests, and performance project compile; formatting checks pass.
2026-10-20 08:28:23 +01:00
Adam Hathcock
030569611e
Reduce 7z copy and LZMA decoder allocations
...
Pool writer CRC-copy buffers, use memory-based async read overloads on modern targets, reuse LZMA2 decoders across resets, and initialize probability-model banks lazily.
Add reset/property-change, memory-read, writer boundary/CRC, and growth regression coverage. Document staged profiling results and rejection of dictionary-growth policies that regress small-file allocations.
Validation: 2,997 .NET 10 Release tests passed, all library targets built, net48 tests compiled, and formatting checks passed.
2026-10-19 15:11:47 +01:00
Adam Hathcock
14d77b671c
Release pooled 7z decoder buffers across async and partial reads
...
Dispose cached folder decoders during async archive cleanup and scope temporary encoded-header decoders in both read paths. Release LZMA range-decoder input buffers on partial reads and failures while preserving borrowed source ownership.
Correct the synchronous extraction-reader benchmark and expand lifetime and checksum coverage. Document profiling showing async Archive allocations falling from 8.95 MiB to 0.70 MiB per extraction, with metadata-only allocations reduced by 70%.
Validation: 2,989 .NET 10 Release tests passed; all library targets, the performance project, and net48 test compilation succeeded. Formatting and whitespace checks passed.
2026-10-19 14:43:51 +01:00
Adam Hathcock
78006f94f7
More pooled or readonly memory stream usage
2026-10-19 12:07:29 +01:00
Adam Hathcock
700ae66e0a
Fix usage of DisposeAsyncScope
2026-10-19 11:49:08 +01:00
Adam Hathcock
0fbf36d602
Merge remote-tracking branch 'origin/release'
...
# Conflicts:
# src/SharpCompress/Compressors/LZMA/LZ/LzOutWindow.cs
# src/SharpCompress/Compressors/LZMA/LzmaStream.cs
2026-10-19 11:15:09 +01:00
Adam Hathcock
2168385f2e
fixes for release
2026-10-19 10:52:07 +01:00
Adam Hathcock
560a148ddb
Merge pull request #1455 from romaklayt/perf/source-stream-cache-length
...
Read each SourceStream part's length once
2026-10-19 10:36:22 +01:00
Adam Hathcock
7642f76f38
changes fixes to use pooled arrays
2026-10-19 10:10:09 +01:00
Adam Hathcock
4966fc186b
Merge branch 'release' into fix/lzma2-truncated-header
...
# Conflicts:
# src/SharpCompress/Compressors/LZMA/LZ/LzOutWindow.cs
2026-10-19 09:59:33 +01:00
Adam Hathcock
c6d8c76b14
Review changes around disposal
2026-10-19 09:43:44 +01:00
Adam Hathcock
26d482f785
Merge remote-tracking branch 'origin/master' into feature/reduce-archive-allocations
2026-10-19 09:13:03 +01:00
Adam Hathcock
1fc4a7cdf1
Remove unsupported LZMA terminal-error guarantees
2026-10-16 16:03:00 +01:00
Adam Hathcock
a83022ca17
Preserve frozen stream recordings during TAR probing
2026-10-16 15:57:21 +01:00
Adam Hathcock
d4234a2b35
Guard LZMA CodeFast dictionary accesses
2026-10-16 15:50:17 +01:00
Adam Hathcock
2369f10b63
Grow LZMA dictionary storage only as decoded history requires
2026-10-16 15:39:56 +01:00
Adam Hathcock
bc1ade2bbc
Reject truncated LZMA2 headers and prevent stalled decoding
2026-10-16 15:23:57 +01:00
Adam Hathcock
9bb74557d5
Fix TAR probe cleanup and preserve active recording sessions
2026-10-16 15:08:36 +01:00
Roma Kolyago
e7421f5daa
Read each SourceStream part's length once
2026-10-16 16:04:44 +03:00
Adam Hathcock
0ef935c13c
Dispose 7Zip reader decoders without closing borrowed volumes
2026-10-15 18:18:18 +01:00
Adam Hathcock
c063e45d1b
Release TAR probe buffers and avoid buffering seekable inputs
2026-10-15 18:18:17 +01:00
Adam Hathcock
f5f8558de6
Fix async RAR unpacker buffer disposal
2026-10-15 18:17:49 +01:00
Adam Hathcock
0595cba0c0
more optimizing of zip/zip64
2026-10-15 18:17:49 +01:00
Adam Hathcock
3f613ab6cf
deflate 0 optimizations
2026-10-15 18:17:49 +01:00
Adam Hathcock
454ec7e98b
Dispose 7Zip reader decoders without closing borrowed volumes
2026-10-15 16:49:30 +01:00
Adam Hathcock
7505ba7e5f
Release TAR probe buffers and avoid buffering seekable inputs
2026-10-15 16:49:30 +01:00
Adam Hathcock
77490536ae
Fix async RAR unpacker buffer disposal
2026-10-15 16:48:47 +01:00
Adam Hathcock
e58fcb23e5
Preserve async disposal across all supported frameworks
2026-10-13 12:57:14 +01:00
Adam Hathcock
3bbe0cc93f
Use STREAM_DISPOSEASYNC capability guards for stream disposal
2026-10-13 12:41:38 +01:00
Adam Hathcock
d431c80b38
Fix WinZip AES authentication retry after cancellation
2026-10-13 12:23:24 +01:00
Adam Hathcock
1fb8ac1724
Merge remote-tracking branch 'origin/release'
...
# Conflicts:
# src/SharpCompress/Compressors/LZMA/LzmaStream.Async.cs
# src/SharpCompress/Compressors/LZMA/LzmaStream.cs
2026-10-13 11:39:15 +01:00
Adam Hathcock
ba8d0f84b1
Merge remote-tracking branch 'origin/release'
...
# Conflicts:
# src/SharpCompress/Common/GZip/GZipChecksumValidationStream.cs
# src/SharpCompress/Common/Zip/WinzipAesCryptoStream.Async.cs
# src/SharpCompress/Common/Zip/WinzipAesCryptoStream.cs
# src/SharpCompress/Compressors/Deflate/ZlibBaseStream.cs
2026-10-13 11:00:17 +01:00
Adam Hathcock
b91671dfc3
Release partially constructed 7z decoder streams on failure
2026-10-13 10:31:15 +01:00
Adam Hathcock
bdb42df4dc
Make raw LZMA setup and disposal exception-safe
2026-10-13 10:29:07 +01:00
Adam Hathcock
38e3222dc2
Release rewind buffers despite disposal failures and reject disposed reads
2026-10-13 10:26:09 +01:00
Adam Hathcock
b3fac7e04a
Release owned Squeeze buffers and failed PPMd models
2026-10-13 10:24:19 +01:00
Adam Hathcock
46437bbbbc
Return pooled memory stream blocks when construction fails
2026-10-13 10:21:45 +01:00
Adam Hathcock
b8f3a8695b
Validate LZMA2 setup before renting and reject disposed writes
2026-10-13 10:09:14 +01:00
Adam Hathcock
c574364838
Fix pooled buffer ownership and exception-safe cleanup
2026-10-13 09:57:19 +01:00
Adam Hathcock
f888179583
Preserve DEFLATE read-ahead bytes after one-byte output and EOF
2026-10-10 15:40:37 +01:00
Adam Hathcock
fed1d884c7
Do not treat zero-length checksum reads as end of entry
2026-10-10 15:40:37 +01:00
Adam Hathcock
d01539ae3c
Handle partial LZip headers and validate dictionary sizes consistently
2026-10-10 15:40:35 +01:00
