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Author SHA1 Message Date
Yann Collet
cb18fffe65 enforce C90 compatibility for zlibWrapper 2019-09-24 17:50:58 -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
Yann Collet
a07da7b0db
Merge pull request #1808 from davidbolvansky/highset-codegen 
Improve ZSTD_highbit32's codegen
 2019-09-23 13:44:27 -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 Terrell
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 Handte
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
e068bd01df [tests] Fix decodecorpus 2019-09-20 01:09:47 -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 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
Nick Terrell
0e76000dee
Merge pull request #1801 from terrelln/int-max 
[test] Test the bounds of ZSTD_c_srcSizeHint
 2019-09-19 11:10:13 -07:00
Yann Collet
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 Collet
bfff5b30a4
Merge pull request #1756 from mgrice/dev 
Improvements in zstd decode performance
 2019-09-18 11:35:50 -07:00
Nick Terrell
51990246c3 [test] Test the bounds of ZSTD_c_srcSizeHint 2019-09-18 11:05:08 -07:00
Sergey Ponomarev
dafe796e39 #1790 short tar's extensions tgz, txz, tlz4m .tzst should be decompressed with .tar suffix 2019-09-18 09:23:10 +03:00
Sergey Ponomarev
bfb4d830b2 FIO_determineDstName: extract dstFileNameEndPos variable 2019-09-18 09:21:00 +03:00
Bimba Shrestha
3cacc0a30b Casting void pointer to ZSTD_Sequence pointer 2019-09-17 17:44:08 -07:00
Yann Collet
5329de1f1e
Merge pull request #1798 from facebook/refac_fast 
minor refactor of ZSTD_fast
 2019-09-17 14:54:23 -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
Felix Handte
dd2838eeb4
Merge pull request #1783 from felixhandte/mtime-nsec 
Set Mod Time Nanoseconds
 2019-09-17 13:30:21 -04:00
Bimba Shrestha
76fea3fb99 Resolving appveyor test failure implicit conversion 2019-09-16 14:02:23 -07:00
Bimba Shrestha
5b038f128f Merge branch 'extract_sequences_api' of https://github.com/bimbashrestha/zstd into extract_sequences_api 2019-09-16 13:35:49 -07:00
Bimba Shrestha
1f93be0f6d Handling memory leak and potential side effect 2019-09-16 13:35:45 -07:00
Bimba Shrestha
a874435478
Merge branch 'dev' into extract_sequences_api 2019-09-16 13:29:59 -07:00
Felix Handte
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
Dmitri Shubin
4607f80f5a Don't hardcode installation directories in CMakeLists.txt 
Use paths provided by GNUInstallDirs module instead.
 2019-09-16 11:36:37 +03:00
Nick Terrell
282ac22b8a
Merge pull request #1791 from terrelln/doc-up 
[libzstd] Improve advanced API docs
 2019-09-15 14:50:55 -07:00
Nick Terrell
fbeaf6989e [libzstd] Improve advanced API docs 2019-09-15 12:41:24 -07:00
Sergey Ponomarev
59f369a6da Add short tar's extensions .tgz (.tar.gz), .txz (.tar.xz), .tzst (.tar.zst) 2019-09-14 21:30:15 +03:00
Sergey Ponomarev
a101721f4e Use one strstr() call instead of chain of strcmp() 2019-09-14 21:26:27 +03:00
Sergey Ponomarev
7d9cd22e21 #754 Add a hint about -o option 2019-09-14 21:23:47 +03:00
Sergey Ponomarev
8cc815a941 #754 sufixlist->SUFFIX_LIST 2019-09-14 21:15:24 +03:00
Sergey Ponomarev
b804dd3e5b #754 move sufixlist upper and improve error message on missing suffix 2019-09-14 21:14:43 +03:00
Sergey Ponomarev
a4ca246eca build/cmake/README.md: improve 2019-09-14 21:10:42 +03:00
Nick Terrell
f2941db4a9
Merge pull request #1789 from terrelln/larger-fuzz 
[fuzz] Fix leak in block_round_trip
 2019-09-13 14:13:34 -07:00