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3011 Commits

Author SHA1 Message Date
W. Felix Handte
e589ac6276 Reformat Introduction Comment and Mention Negative Levels 2018-08-22 17:07:34 -07:00
Yann Collet
c71c4f23d7 fix "unused parameter" in single-thread mode 
within newly added ZSD_toFlushNow()
 2018-08-20 11:40:10 -07:00
Yann Collet
105677c6db created ZSTDMT_toFlushNow() 
tells in a non-blocking way if there is something ready to flush right now.
only works with multi-threading for the time being.

Useful to know if flush speed will be limited by lack of production.
 2018-08-17 18:11:54 -07:00
Yann Collet
36d6165a2d Makefile: added variable SCANBUILD 
so that a different version of scan-build can be selected
 2018-08-16 16:44:13 -07:00
Yann Collet
1515f0bb0d fixed more issues detected by recent version of scan-build 
test run on Linux
 2018-08-16 15:20:25 -07:00
Yann Collet
5291d9ac31 fix scope of scan-build tests 
exclude zlib code
 2018-08-15 17:41:44 -07:00
Yann Collet
42a02ab745 fixed minor warnings issued by scan-build 2018-08-15 14:36:02 -07:00
Yann Collet
3692c31598 Merge branch 'dev' into scanbuild 2018-08-15 13:50:49 -07:00
Yann Collet
6e66bbf5dd fixed several minor issues detected by scan-build 
only notable one :
writeNCount() resists better vs invalid distributions
(though it should never happen within zstd anyway)
 2018-08-14 16:55:35 -07:00
Yann Collet
3e4617ef54 frameProgression reports nbActiveWorkers and output flushed 2018-08-14 11:49:25 -07:00
Yann Collet
e7a49c6683 introduced command --adapt 2018-08-11 20:48:06 -07:00
Yann Collet
2dd76037be zstd cli can increase level when input is too slow 2018-08-09 15:51:30 -07:00
Yann Collet
79a35ac20d minor code comments improvements 2018-08-09 15:16:31 -07:00
W. Felix Handte
2ca7c69167 Fix CDict Attachment to Handle CDicts with Non-Zero Starts 
CDicts were previously guaranteed to be generated with `lowLimit=dictLimit=0`.
This is no longer true, and so the old length and index calculations are no
longer valid. This diff fixes them to handle non-zero start indices in CDicts.
 2018-08-07 18:14:14 -07:00
Yann Collet
5808027abf Merge branch 'dev' into fix1241 2018-08-03 16:08:33 -07:00
Yann Collet
5892dd5da4
Merge pull request #1255 from terrelln/norm-fix 
[FSE] Fix division by zero
 2018-08-02 11:48:56 -07:00
Nick Terrell
dc5a67cb7b Disallow tableLog == srcLog 2018-08-02 11:12:17 -07:00
Jennifer Liu
f5228f2c44 Refactoring 2018-07-31 13:58:54 -07:00
Jennifer Liu
4e29bc2469 Use CDict instead of CCtx in analyzeEntropy 2018-07-31 10:36:45 -07:00
cyan4973
3f535007e4 fix %zu support under minGW 
and relevant test on Appveyor
 2018-07-30 16:56:18 +02:00
cyan4973
aade1e5904 Merge branch 'dev' into fix1241 2018-07-30 16:30:35 +02:00
Nick Terrell
9889bca530 [FSE] Fix division by zero 
When the primary normalization method fails, and
`(1 << tableLog) == (maxSymbolValue + 1)`, and every symbol gets assigned
normalized weight 1 or -1 in the first loop, then the next division can
raise `SIGFPE`.
 2018-07-27 17:30:03 -07:00
Yann Collet
6e490a2f09
Merge pull request #1237 from terrelln/init-cstream-adv 
Set requestedParams in ZSTD_initCStream*()
 2018-07-18 16:33:30 +02:00
cyan4973
9597b438e9 fix #1241 
Ensure that first input position is valid for a match
even during first usage of context
by starting reference at 1
(avoiding the problematic 0).
 2018-07-17 18:52:57 +02:00
cyan4973
53e1f0504e zstdmt debug traces compatibles with mingw 
since mingw does not have `sys/times.h`,
remove this path when detecting mingw compilation.
 2018-07-17 14:39:44 +02:00
Nick Terrell
45821fac0c
Merge pull request #1225 from jennifermliu/dev 
Split samples when building dictionary for COVER
 2018-07-13 13:26:15 -07:00
Nick Terrell
6d222c437c Set requestedParams in ZSTD_initCStream*() 
The correct parameters are used once, but once `ZSTD_resetCStream()` is
called the default parameters (level 3) are used. Fix this by setting
`requestedParams` in the `ZSTD_initCStream*()` functions.

The added tests both fail before this patch and pass after.
 2018-07-12 18:35:55 -07:00
Jennifer Liu
612b346ed5 Add explanation for split=100 2018-07-11 15:50:28 -07:00
Jennifer Liu
5021441d86 Change default splitPoint to 100 2018-07-10 11:19:33 -07:00
Jennifer Liu
456f290e31 Change back to splitPoint<=0 2018-07-09 13:53:25 -07:00
Jennifer Liu
7efabb2cf6 Only make 0.0 default splitPoint 2018-07-09 12:26:53 -07:00
Yann Collet
bbd78df59b add build macro NO_PREFETCH 
prevent usage of prefetch intrinsic commands
which are not supported by c2rust
(see https://github.com/immunant/c2rust/issues/13)
 2018-07-06 17:06:04 -07:00
Jennifer Liu
015a00af0f Change cover_sum back to 2 parameters and fix splitPoint issues 2018-07-06 14:24:18 -07:00
Jennifer Liu
0bbff01211 Fix testing parameter 2018-07-05 22:40:32 -07:00
Jennifer Liu
a085d1aae1 Allow splitPoint==1.0 (using all samples for both training and testing) 2018-07-05 10:38:45 -07:00
Jennifer Liu
0881184c89 Some edits based on pull request comments 2018-07-03 17:53:27 -07:00
Jennifer Liu
16e75e8804 Update minimal training sample size 2018-07-03 12:07:06 -07:00
Jennifer Liu
348e5f77a9 Add split=# to cli 2018-06-29 17:54:41 -07:00
Jennifer Liu
52fbbbcb6b Explicitly cast double to unsigned 2018-06-29 16:17:20 -07:00
Jennifer Liu
f9d19b83fb Fix variable declaration problem 2018-06-29 15:46:56 -07:00
Jennifer Liu
e061d84016 Another fix to comparator 2018-06-29 15:38:08 -07:00
Jennifer Liu
59797d3328 Fix splitPoint floating point comparison problem 2018-06-29 12:47:03 -07:00
Jennifer Liu
0ef06f2e8a Split samples into train and test sets 2018-06-29 12:33:34 -07:00
Yann Collet
121aa2c388
Merge pull request #1211 from facebook/staticAssert 
updated DEBUG_STATIC_ASSERT()
 2018-06-27 12:19:17 -07:00
Yann Collet
4489daec09 slightly adjusted default-distribution threshold 
depending on strategy.
fast favors faster compression and decompression speeds.
 2018-06-26 20:10:45 -07:00
Yann Collet
ff773bfcde zeroise freq table with memset() 
improves decoding speed by ~5% in github_users sample set
 2018-06-26 17:24:41 -07:00
Yann Collet
7b9bbf77c9 switched to a sizeof() version 
avoid -Werror=unused-variable issue
 2018-06-26 14:08:35 -07:00
Yann Collet
f98ec46979 updated DEBUG_STATIC_ASSERT() 
following suggestion from #1209
 2018-06-26 12:04:59 -07:00
Nick Terrell
b426bcc097
[zstdmt] Fix jobsize bugs (#1205) 
[zstdmt] Fix jobsize bugs

* `ZSTDMT_serialState_reset()` should use `targetSectionSize`, not `jobSize` when sizing the seqstore.
  Add an assert that checks that we sized the seqstore using the right job size.
* `ZSTDMT_compressionJob()` should check if `rawSeqStore.seq == NULL`.
* `ZSTDMT_initCStream_internal()` should not adjust `mtctx->params.jobSize` (clamping to MIN/MAX is okay).
 2018-06-25 15:21:08 -07:00
Yann Collet
3b53bfe4f3
Merge pull request #1200 from felixhandte/zstd-attach-dict-pref 
Add CCtx Param Controlling Dict Attachment Behavior
 2018-06-25 12:42:31 -07:00