AuroraMiddleware/zstd
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14c83b05c7
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1665 Commits

Author SHA1 Message Date
Yann Collet
14c83b05c7 Merge pull request #765 from terrelln/real-block-split 
[libzstd] Remove ZSTD_CCtx* argument of ZSTD_compressSequences()
 2017-07-17 19:25:55 -07:00
Yann Collet
3381bf4b84 Merge pull request #764 from terrelln/real-block-split 
[libzstd] Refactor ZSTD_compressSequences()
 2017-07-17 14:46:01 -07:00
Nick Terrell
e198230645 [libzstd] Remove ZSTD_CCtx* argument of ZSTD_compressSequences() 2017-07-17 12:27:24 -07:00
Nick Terrell
634f012420 [libzstd] Refactor ZSTD_compressSequences() 2017-07-17 11:36:11 -07:00
Yann Collet
3b0cff3c33 fixed clang's -Wdocumentation 2017-07-13 18:58:30 -07:00
Yann Collet
2bd6440be0 pinned down error code enum values 
Note : all error codes are changed by this new version,
but it's expected to be the last change for existing codes.

Codes are now grouped by category, and receive a manually attributed value.
The objective is to guarantee that
error code values will not change in the future
when introducing new codes.
Intentionnal empty spaces and ranges are defined
in order to keep room for potential new codes.
 2017-07-13 17:12:16 -07:00
Nick Terrell
830ef4152a [libzstd] Increase granularity of FSECTable repeat mode 2017-07-13 12:45:39 -07:00
Yann Collet
d985319337 Merge pull request #759 from terrelln/real-block-split 
[libzstd] Pull CTables into sub-structure
 2017-07-13 10:24:19 -07:00
Yann Collet
3a60efd3a9 policy change : ZSTDMT automatically caps nbThreads to ZSTDMT_NBTHREADS_MAX (#760) 
Previously, ZSTDMT would refuse to create the compressor.
Also : increased ZSTDMT_NBTHREADS_MAX to 256,
updated doc,
and added relevant test
 2017-07-13 10:17:23 -07:00
Yann Collet
132e6efd76 switched ZSTDMT_compress_advanced() last argument to overlapLog 
overlapRLog (== 9 - overlapLog) was a bit "strange"
as all other public entry points use overlapLog
 2017-07-13 02:22:58 -07:00
Yann Collet
4e77f7761d clarified comment on ZSTD_p_contentSizeFlag 2017-07-13 02:09:07 -07:00
Nick Terrell
de0414b736 [libzstd] Pull CTables into sub-structure 2017-07-12 19:49:19 -07:00
Yann Collet
8ef666c325 slightly increased buffer pool, to cover normal "full load" scenarios 
2 buffers per active worker
+ 1 buffer for input loading
+ 1 buffer for "next input" when submitting current one
+ 1 buffer stuck in queue
 2017-07-12 14:23:34 -07:00
Yann Collet
052a95f77c fix : ZSTDMT_compress_advanced() correctly generates checksum 
when params.fParams.checksumFlag==1.
This use case used to be impossible when only ZSTD_compress() was available
 2017-07-11 17:18:26 -07:00
Yann Collet
2a62f48bf4 release input buffers from inside worker thread 
buffers are released sooner, which makes them available faster for next job.
=> decreases total nb of buffers necessary
 2017-07-11 15:56:40 -07:00
Yann Collet
57236184af buffer pool : all buffers have same size 
to reduce memory fragmentation.
They can be used for in or out, interchangeably.
 2017-07-11 15:17:25 -07:00
Yann Collet
34b2b95631 zstdmt : intermediate outBuffer allocated from within worker 
reduces total amount of memory needed,
since jobs in queue do not have an outBuffer pre-reserved now
 2017-07-11 14:59:10 -07:00
Yann Collet
16261e6951 buffer pool can be invoked from multiple threads 2017-07-11 14:14:07 -07:00
Yann Collet
ef0ff7fe7f zstdmt: removed margin for improved memory usage 2017-07-11 08:54:29 -07:00
Yann Collet
4616fad18b improved ZSTDMT_compress() memory usage 
does not need the input buffer for streaming operations

also : reduced a few tests time length
 2017-07-10 17:16:41 -07:00
Yann Collet
670b1fc547 optimized memory usage for ZSTDMT_compress() 
Previously, each job would reserve a CCtx right before being posted.
The CCtx would be "part of the job description",
and only released when the job is completed (aka flushed).
For ZSTDMT_compress(), which creates all jobs first and only join at the end,
that meant one CCtx per job.
The nb of jobs used to be == nb of threads,
but since latest modification,
which reduces the size of jobs in order to spread the load of difficult areas,
it also increases the nb of jobs for large sources / small compression level.
This resulted in many more CCtx being created.

In this new version, CCtx are reserved within the worker thread.
It guaranteea there cannot be more CCtx reserved than workers (<= nb threads).

To do that, it required to make the CCtx Pool multi-threading-safe :
it can now be called from multiple threads in parallel.
 2017-07-10 16:30:55 -07:00
Yann Collet
3510efb02d fix : custom allocator correctly propagated to child contexts 2017-07-10 14:21:40 -07:00
Yann Collet
88da8f1816 fix : propagate custom allocator to ZSTDMT though ZSTD_CCtx_setParameter() 
also : compile fuzzer with MT enabled
 2017-07-10 14:02:33 -07:00
Yann Collet
e32fb0c1fe added ZSTD_sizeof_CCtx() test 2017-07-10 12:29:57 -07:00
Yann Collet
40156a4967 bumped version nb to v1.3.1 2017-07-08 04:55:09 -07:00
Yann Collet
0f4fc6c20a fixed several conversion warnings 2017-07-07 17:13:12 -07:00
Yann Collet
9bde061a0b fixed minor Visual compilation limitation 2017-07-07 16:14:17 -07:00
Yann Collet
593d517ebf fixed minor cast warning 2017-07-07 16:09:47 -07:00
Yann Collet
ead4dd48f6 new field frameHeader.headerSize 2017-07-07 15:51:24 -07:00
Yann Collet
46396523c0 ZSTD_getFrameHeader : control of windowSize limits is delegated to caller 
Extracting frame header is a separate operation.
It's now possible to get frame header, whatever the window size set in it.
 2017-07-07 15:32:12 -07:00
Yann Collet
990449b89d new field : ZSTD_frameHeader.frameType 
Makes frame type (zstd,skippable) detection more straighforward.
ZSTD_getFrameHeader set frameContentSize=ZSTD_CONTENTSIZE_UNKNOWN to mean "field not present"
 2017-07-07 15:21:35 -07:00
Yann Collet
e622330a3b extended frameHeader.windowSize to unsigned long long 2017-07-07 14:19:01 -07:00
Yann Collet
f04deff4fc fixed #718, reported by @GregSlazinski, solution suggested by @mcmilk 2017-07-06 01:42:46 -07:00
Yann Collet
d75c0e71c4 minor code refactoring 2017-07-05 18:10:07 -07:00
Yann Collet
49af41820d clarified status of zstdmt_compress.h API 2017-07-05 17:21:13 -07:00
Yann Collet
27e883371d fixed wrong assert() condition 
A single job created by ZSTDMT_compress() can be < 256KB
if data to compress is < 256 KB
(in which case it is delegated to single thread mode)
 2017-07-04 19:33:16 -07:00
Yann Collet
2cb9774f5e more precise estimation of amount to flush at end of stream (single thread mode) 
also : can use DEBUGLEVEL variable in /tests
 2017-07-04 12:39:26 -07:00
Yann Collet
6383372dec fixed : 0-copy in NULL is UB 2017-07-04 10:36:41 -07:00
Yann Collet
5051dd39ca Merge pull request #743 from facebook/fullbench 
compress_generic() automatic optimization opportunities
 2017-07-03 21:26:38 -07:00
Yann Collet
2de2396a36 refactor ZSTDMT_compress() 2017-07-03 16:23:36 -07:00
Yann Collet
2084b041f4 fixed comments 2017-07-03 15:52:19 -07:00
Yann Collet
5a77361595 fixed wrong function name in comment 2017-07-03 15:21:24 -07:00
Nick Terrell
c80fc50a8d [libzstd] Fix memcpy() on potential NULL source 
* `ZSTD_decompressStream_generic()` `ip` may be `NULL` for one of the calls
  to `memcpy()`
* Assert the source is not `NULL` for calls to `memcpy()` where I believe
  the source should not be `NULL`.
 2017-07-03 12:31:55 -07:00
Yann Collet
2485f88bf8 fixed legacy version init bug 2017-07-01 09:09:34 -07:00
cyan4973
21fdf97e00 Merge branch 'dev' into fullbench 2017-07-01 07:01:08 -07:00
cyan4973
1bafe393e4 fix : ZSTDMT_compressStream_generic() can accept NULL input 
also : converge implementations towards new version of ZSTDMT_compressStream_generic()
 2017-07-01 06:59:24 -07:00
Yann Collet
58bd0e70fc fixed : dictionary compression with new advanced API in Multi-threading mode 2017-06-30 16:01:02 -07:00
Yann Collet
d8b33a598d Optimized ZSTDMT single-pass mode speed on large sources 
by ensuring job sizes remain "not too large"
 2017-06-30 15:44:57 -07:00
Yann Collet
d5c046c609 implemented shortcut for zstd_compress_generic() in MT mode 
added ZSTDMT_compress_advanced() API
 2017-06-30 14:51:01 -07:00
Yann Collet
7f40bb1c39 Merge pull request #742 from stellamplau/stack-space 
Reduce stack usage of HUF_readDTableX4 and HUF_readDTableX2
 2017-06-30 14:50:23 -07:00