Lines Matching full:compression
5 perf: improved compression of arrays of integers at high compression, by @Cyan4973
39 fix: fix rare corruption bug affecting the high compression mode, reported by @danlark1 (#3517, @te…
40 perf: improve mid-level compression speed (#3529, #3533, #3543, @yoniko and #3552, @terrelln)
59 perf: up to +10% faster streaming compression at levels 1-2 (#3114, @embg)
61 pref: +3-11% compression speed for `arm` target (#3199, #3164, #3145, #3141, #3138, @JunHe77 and #3…
62 perf: +5-30% faster dictionary compression at levels 1-4 (#3086, #3114, #3152, @embg)
63 perf: +10-20% cold dict compression speed by prefetching CDict tables (#3177, @embg)
64 perf: +1% faster compression by removing a branch in ZSTD_fast_noDict (#3129, @felixhandte)
65 perf: Small compression ratio improvements in high compression mode (#2983, #3391, @Cyan4973 and #3…
98 bug: Fixes for Sequence Compression API (#3023, #3040, @Cyan4973)
118 perf: Regain Minimal memset()-ing During Reuse of Compression Contexts (@Cyan4973, #2969)
123 perf: rebalanced compression levels, to better match the intended speed/level curve, by @senhuang42
128 perf: faster mid-level compression speed in presence of highly repetitive patterns, by @senhuang42
129 perf: minor compression ratio improvements for small data at high levels, by @cyan4973
131 perf: faster compression speed on incompressible data, by @bindhvo
156 perf: Significant speed improvements for middle compression levels (#2494, @senhuang42 @terrelln)
157 perf: Block splitter to improve compression ratio, enabled by default for high compression levels (…
159 perf: Reduced stack usage during compression and decompression entropy stage (#2522 #2524, @terrell…
164 bug: Ensure `ZSTD_estimateCCtxSize*() `monotonically increases with compression level (#2538, @senh…
167 bug: Fix superblock compression divide by zero bug (#2592, @senhuang42)
199 api: Add (De)Compression Tracing Functionality (#2482, @terrelln)
226 perf: stronger --long mode at high compression levels, by @senhuang42
227 perf: stronger --patch-from at high compression levels, thanks to --long improvements
228 perf: faster dictionary compression at medium compression levels, by @felixhandte
230 perf: improved fast compression speeds with Visual Studio, by @animalize
237 api : shared thread pool: control total nb of threads used by multiple compression jobs, by @marxin
240 api : fix : multithreaded compression has predictable output even in special cases (see #2327) (iss…
241 api : fix : dictionary compression correctly respects dictionary compression level (see #2303) (iss…
252 perf: Reduce compression stack usage by 1 KB, by @terrelln
277 misc: Allow compression dictionaries with missing symbols
284 fix : Compression ratio regression on huge files (> 3 GB) using high levels (--ultra) and multithre…
287 perf: Improved fast compression speed on aarch64 (#2040, ~+3%, by @caoyzh)
288 perf: Small level 1 compression speed gains (depending on compiler)
304 misc: Extend largeNbDicts benchmark to compression
311 perf: Better compression speed when re-using a context, by @felixhandte
312 perf: Fix compression ratio when compressing large files with small dictionary, by @senhuang42
337 bug: Fix Dictionary Compression Ratio Regression by @cyan4973 (#1709)
352 perf: Slightly improved compression ratio of level 3 and 4 (ZSTD_dfast) by @cyan4973 (#1681)
353 perf: Slightly faster compression speed when re-using a context by @cyan4973 (#1658)
354 perf: Improve compression ratio for small windowLog by @cyan4973 (#1624)
355 perf: Faster compression speed in high compression mode for repetitive data by @terrelln (#1635)
378 perf: Improve level 1 compression speed in most scenarios by 6% by @gbtucker and @terrelln
388 api: Add ZSTD_c_literalCompressionMode flag to enable or disable literal compression by @terrelln
389 api: Allow compression parameters to be set when a dictionary is used
394 cli: Add --[no-]compress-literals flag to enable or disable literal compression
416 perf: slightly better compression ratio at high compression modes
438 fix : performance of dictionary compression for small input < 4 KB at levels 9 and 10
445 perf: faster dictionary compression on small data when using multiple contexts, by @felixhandte
448 cli : new command --adapt, for automatic compression level adaptation
451 api : minimum negative compression level is defined, and can be queried using ZSTD_minCLevel().
458 perf: much faster dictionary compression, by @felixhandte
460 perf: slightly improved high compression levels (notably level 19)
464 api : fix : performance degradation for dictionary compression when using advanced API, by @terrelln
475 perf: better compression at levels 13-15
476 cli : asynchronous compression by default, for faster experience (use --single-thread for former be…
478 cli : added command --fast=#, for faster compression modes
481 api : compression levels can be negative, for even more speed
483 api : ZSTDMT can accept new compression parameters during compression
506 fix : multi-threading compression works with custom allocators
508 fix : a rare compression bug when compression generates very large distances and bunch of other con…
536 new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74)
613 lib : improved : faster decompression speed at ultra compression settings and 32-bits mode
629 Improved : slightly better compression ratio at --ultra levels (>= 20)
630 Improved : better memory usage when using streaming compression API, thanks to @Rogier-5 report
657 Fixed : compression fails on certain huge files, reported by Jesse McGrew
678 Modified : minor compression level adaptations
679 Updated : compression format specification to v0.2.0
689 Modified : default compression level for CLI is now 3
693 New : compression format specification
716 New : Support for directory compression, using `-r`, thanks to Przemyslaw Skibinski
717 New : Command `--rm`, to remove source file after successful de/compression
739 Stronger high compression modes, thanks to Przemyslaw Skibinski
741 New : highest compression modes require `--ultra` command to fully unleash their capacity
745 New : Optimal parsing => Very high compression modes, thanks to Przemyslaw Skibinski
748 Fix : high compression modes for big-endian platforms
754 Improved : better compression of small data
757 Improved : small compression speed improvement in HC mode
762 fix : fast compression mode on Windows
764 Improved : high compression mode on repetitive data
772 Fixed : high compression modes for Windows 32 bits
789 Command line utility compatible with high compression levels
798 minor generic compression improvements
804 Small compression ratio improvement
810 Small compression ratio improvement
813 HC mode : compression levels 2-26
833 fix compression bug