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3015 Commits
Author SHA1 Message Date
Sen Huang e4de8b098a Added support for forcing new CDict behavior and updated enum 2019-10-21 15:36:12 -04:00
Sen Huang 9294f4826b Changed to int from BYTE 2019-10-21 15:36:12 -04:00
Sen Huang f0fccc8847 Changed to int from BYTE 2019-10-21 15:36:12 -04:00
Sen Huang bb2df8c499 Trailing whitespace 2019-10-21 15:36:12 -04:00
Sen Huang cf51501d2f Fix test 2019-10-21 15:36:12 -04:00
Sen Huang ea3cb6988f Cast to BYTE to appease appveyor 2019-10-21 15:36:12 -04:00
Sen Huang a727a85a7e merge conflicts round 2 2019-10-21 15:36:12 -04:00
Sen Huang 053a35fd64 formatting 2019-10-21 15:35:33 -04:00
Sen Huang 3fa4daaa55 Fix error 2019-10-21 15:35:33 -04:00
Sen Huang 3328348c63 Add compressionlevel to cdict 2019-10-21 15:32:39 -04:00
Yann ColletandGitHub fb77afc626 Merge pull request #1760 from bimbashrestha/extract_sequences_api 
Adding api for extracting sequences from seqstore
 2019-10-10 13:11:18 -07:00
Bimba Shrestha 36528b96c4 Manually moving instead of memcpy on decoder and using genBuffer() 2019-10-03 09:26:51 -07:00
Bimba Shrestha 61ec4c2e7f Cleaning sequence parsing logic 2019-10-03 06:42:40 -07:00
Yann Collet ad2a2785f7 bump version number to v1.4.4 
so that future reports on `dev` branch use this number instead
 2019-09-24 15:15:33 -07:00
Bimba Shrestha c04245b257 Replacing assert with memory_allocation error code throw 2019-09-23 15:42:16 -07:00
Bimba Shrestha be0bebd24e Adding test and null check for malloc 2019-09-23 15:08:18 -07:00
Dávid Bolvanský 1ab1a40c9c Fixed one more place 2019-09-23 21:32:56 +02:00
Dávid Bolvanský 1f7228c040 Use clz ^ 31 instead of 31 - clz; better codegen for GCC 2019-09-23 21:23:09 +02:00
Nick TerrellandGitHub 7451c6578c Merge pull request #1804 from terrelln/wild-and-fast 
Optimize (de)compression and fix wildcopy overread
 2019-09-21 17:04:36 -07:00
Nick Terrell 5cb7615f1f Add UNUSED_ATTR to ZSTD_storeSeq() 2019-09-20 21:37:13 -07:00
Nick Terrell 5dc0a1d659 HINT_INLINE ZSTD_storeSeq() 
Clang on Mac wasn't inlining `ZSTD_storeSeq()` in level 1, which was
causing a 5% performance regression. This fixes it.
 2019-09-20 16:39:27 -07:00
Bimba Shrestha f3c4fd17e3 Passing in dummy dst buffer of compressbound(srcSize) 2019-09-20 15:50:58 -07:00
Felix HandteandGitHub c047fcf7bf Merge pull request #1806 from felixhandte/estimate-cctx-doc 
Update Comment on `ZSTD_estimateCCtxSize()`
 2019-09-20 15:36:00 -04:00
Nick Terrell 44c65da97e Remove literals overread in ZSTD_storeSeq() for ~neutral perf 2019-09-20 12:23:25 -07:00
W. Felix Handte f7d9b36835 Update Comment on ZSTD_estimateCCtxSize() 2019-09-20 14:11:29 -04:00
Nick Terrell fde217df04 Fix bounds check in ZSTD_storeSeq() 2019-09-20 08:25:12 -07:00
Nick Terrell 67b1f5fc72 Fix too strict assert 2019-09-20 01:23:35 -07:00
Nick Terrell ddab2a94e8 Pass iend into ZSTD_storeSeq() to allow ZSTD_wildcopy() 2019-09-20 00:56:20 -07:00
Nick Terrell cdad7fa512 Widen ZSTD_wildcopy to 32 bytes 2019-09-20 00:52:15 -07:00
Nick TerrellandNick Terrell efd37a64ea Optimize decompression and fix wildcopy overread 
* Bump `WILDCOPY_OVERLENGTH` to 16 to fix the wildcopy overread.
* Optimize `ZSTD_wildcopy()` by removing unnecessary branches and
  unrolling the loop.
* Extract `ZSTD_overlapCopy8()` into its own function.
* Add `ZSTD_safecopy()` for `ZSTD_execSequenceEnd()`. It is
  optimized for single long sequences, since that is the important
  case that can end up in `ZSTD_execSequenceEnd()`. Without this
  optimization, decompressing a block with 1 long match goes
  from 5.7 GB/s to 800 MB/s.
* Refactor `ZSTD_execSequenceEnd()`.
* Increase the literal copy shortcut to 16.
* Add a shortcut for offset >= 16.
* Simplify `ZSTD_execSequence()` by pushing more cases into
  `ZSTD_execSequenceEnd()`.
* Delete `ZSTD_execSequenceLong()` since it is exactly the
  same as `ZSTD_execSequence()`.

clang-8 seeds +17.5% on silesia and +21.8% on enwik8.
gcc-9 sees +12% on silesia and +15.5% on enwik8.

TODO: More detailed measurements, and on more datasets.

Crdit to OSS-Fuzz for finding the wildcopy overread.
 2019-09-19 21:07:14 -07:00
Bimba Shrestha ae6d0e64ae Addressing comments 2019-09-19 15:25:20 -07:00
Yann ColletandGitHub 3cac061db5 Merge pull request #1802 from bimbashrestha/rle_block_bound_fix_pt2 
Adding 4 blocks to FSE_BLOCKBOUND() in lib/common (different from las…
 2019-09-18 16:32:37 -07:00
Bimba Shrestha 6e9f6813bb adding bit container size 2019-09-18 13:49:45 -07:00
Bimba Shrestha f9b6abb896 Adding 4 blocks to FSE_BLOCKBOUND() in lib/common (different from last week) 2019-09-18 13:29:05 -07:00
Yann ColletandGitHub bfff5b30a4 Merge pull request #1756 from mgrice/dev 
Improvements in zstd decode performance
 2019-09-18 11:35:50 -07:00
Yann Collet 243200e5bf minor refactor of ZSTD_fast 
- reduced variables lifetime
- more accurate code comments
 2019-09-17 14:02:57 -07:00
Bimba Shrestha 76fea3fb99 Resolving appveyor test failure implicit conversion 2019-09-16 14:02:23 -07:00
Bimba ShresthaandGitHub a874435478 Merge branch 'dev' into extract_sequences_api 2019-09-16 13:29:59 -07:00
Felix HandteandGitHub 2164a130f3 Merge pull request #1780 from felixhandte/workspace-efficiency-3 
Avoid Clearing Tables Even When Changing CParams
 2019-09-16 14:37:05 -04:00
W. Felix Handte 72ea79cacd Don't Include sanitizer/msan_interface.h, Since Not All Platforms Provide It 
Instead, explicitly declare the functions we use.
 2019-09-16 12:08:03 -04:00
Bimba Shrestha bff6072e3a Bailing early when collecting sequences and documentation 2019-09-16 08:26:21 -07:00
Nick Terrell fbeaf6989e [libzstd] Improve advanced API docs 2019-09-15 12:41:24 -07:00
Yann ColletandGitHub 09b1844d9b Merge pull request #1784 from bimbashrestha/fse_block_bound_err 
Rearranging assert and allowing 4 extra for FSE_BLOCKBOUND()
 2019-09-12 19:09:27 -07:00
Bimba Shrestha fe9af338ed Added assert to BIT_flushBits() 2019-09-12 15:35:27 -07:00
Bimba Shrestha 43da5bf27e Rearranging assert and allowing 4 extra for FSE_BLOCKBOUND() 2019-09-12 14:43:50 -07:00
W. Felix Handte 20c69077d1 Shrink Table Valid End During Alloc Alignment / Phase Change 2019-09-11 17:14:59 -04:00
W. Felix Handte 51d90668ba Add Assertions to Confirm that Workspace Pointers are Correctly Ordered 2019-09-11 17:14:59 -04:00
W. Felix Handte a10c191613 __msan_poison() Workspace When Preparing for Re-Use 2019-09-11 17:14:45 -04:00
W. Felix Handte 7c57e2b9ca Zero h3size When h3log is 0 
This led to a nasty edgecase, where index reduction for modes that don't use
the h3 table would have a degenerate table (size 4) allocated and marked clean,
but which would not be re-indexed.
 2019-09-11 13:14:26 -04:00
W. Felix Handte bc020eec92 Also Shrink Clean Table Area When Reducing Indices 2019-09-11 11:40:57 -04:00