d985319337
Merge pull request #759 from terrelln/real-block-split
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[libzstd] Pull CTables into sub-structure
2017-07-13 10:24:19 -07:00
3a60efd3a9
policy change : ZSTDMT automatically caps nbThreads to ZSTDMT_NBTHREADS_MAX ( #760 )
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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
132e6efd76
switched ZSTDMT_compress_advanced() last argument to overlapLog
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overlapRLog (== 9 - overlapLog) was a bit "strange"
as all other public entry points use overlapLog
2017-07-13 02:22:58 -07:00
4e77f7761d
clarified comment on ZSTD_p_contentSizeFlag
2017-07-13 02:09:07 -07:00
de0414b736
[libzstd] Pull CTables into sub-structure
2017-07-12 19:49:19 -07:00
8ef666c325
slightly increased buffer pool, to cover normal "full load" scenarios
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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
052a95f77c
fix : ZSTDMT_compress_advanced() correctly generates checksum
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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
2a62f48bf4
release input buffers from inside worker thread
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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
57236184af
buffer pool : all buffers have same size
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to reduce memory fragmentation.
They can be used for in or out, interchangeably.
2017-07-11 15:17:25 -07:00
34b2b95631
zstdmt : intermediate outBuffer allocated from within worker
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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
16261e6951
buffer pool can be invoked from multiple threads
2017-07-11 14:14:07 -07:00
ef0ff7fe7f
zstdmt: removed margin for improved memory usage
2017-07-11 08:54:29 -07:00
4616fad18b
improved ZSTDMT_compress() memory usage
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does not need the input buffer for streaming operations
also : reduced a few tests time length
2017-07-10 17:16:41 -07:00
670b1fc547
optimized memory usage for ZSTDMT_compress()
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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
3510efb02d
fix : custom allocator correctly propagated to child contexts
2017-07-10 14:21:40 -07:00
88da8f1816
fix : propagate custom allocator to ZSTDMT though ZSTD_CCtx_setParameter()
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also : compile fuzzer with MT enabled
2017-07-10 14:02:33 -07:00
e32fb0c1fe
added ZSTD_sizeof_CCtx() test
2017-07-10 12:29:57 -07:00
40156a4967
bumped version nb to v1.3.1
2017-07-08 04:55:09 -07:00
0f4fc6c20a
fixed several conversion warnings
2017-07-07 17:13:12 -07:00
9bde061a0b
fixed minor Visual compilation limitation
2017-07-07 16:14:17 -07:00
593d517ebf
fixed minor cast warning
2017-07-07 16:09:47 -07:00
ead4dd48f6
new field frameHeader.headerSize
2017-07-07 15:51:24 -07:00
46396523c0
ZSTD_getFrameHeader : control of windowSize limits is delegated to caller
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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
990449b89d
new field : ZSTD_frameHeader.frameType
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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
e622330a3b
extended frameHeader.windowSize to unsigned long long
2017-07-07 14:19:01 -07:00
f04deff4fc
fixed #718 , reported by @GregSlazinski, solution suggested by @mcmilk
2017-07-06 01:42:46 -07:00
d75c0e71c4
minor code refactoring
2017-07-05 18:10:07 -07:00
49af41820d
clarified status of zstdmt_compress.h API
2017-07-05 17:21:13 -07:00
27e883371d
fixed wrong assert() condition
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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
2cb9774f5e
more precise estimation of amount to flush at end of stream (single thread mode)
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also : can use DEBUGLEVEL variable in /tests
2017-07-04 12:39:26 -07:00
6383372dec
fixed : 0-copy in NULL is UB
2017-07-04 10:36:41 -07:00
5051dd39ca
Merge pull request #743 from facebook/fullbench
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compress_generic() automatic optimization opportunities
2017-07-03 21:26:38 -07:00
2de2396a36
refactor ZSTDMT_compress()
2017-07-03 16:23:36 -07:00
2084b041f4
fixed comments
2017-07-03 15:52:19 -07:00
5a77361595
fixed wrong function name in comment
2017-07-03 15:21:24 -07:00
c80fc50a8d
[libzstd] Fix memcpy() on potential NULL source
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* `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
2485f88bf8
fixed legacy version init bug
2017-07-01 09:09:34 -07:00
21fdf97e00
Merge branch 'dev' into fullbench
2017-07-01 07:01:08 -07:00
1bafe393e4
fix : ZSTDMT_compressStream_generic() can accept NULL input
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also : converge implementations towards new version of ZSTDMT_compressStream_generic()
2017-07-01 06:59:24 -07:00
58bd0e70fc
fixed : dictionary compression with new advanced API in Multi-threading mode
2017-06-30 16:01:02 -07:00
d8b33a598d
Optimized ZSTDMT single-pass mode speed on large sources
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by ensuring job sizes remain "not too large"
2017-06-30 15:44:57 -07:00
d5c046c609
implemented shortcut for zstd_compress_generic() in MT mode
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added ZSTDMT_compress_advanced() API
2017-06-30 14:51:01 -07:00
7f40bb1c39
Merge pull request #742 from stellamplau/stack-space
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Reduce stack usage of HUF_readDTableX4 and HUF_readDTableX2
2017-06-30 14:50:23 -07:00
32df49e9f8
Fix typo
2017-06-30 12:56:24 -07:00
b0513b519c
Add comment to HUF_DECOMPRESS_WORKSPACE_SIZE
2017-06-30 12:53:56 -07:00
4c71f59c77
Clarify typedef of rankVal_t and rankValCol_t
2017-06-30 09:52:20 -07:00
28f711ef95
Rename ALIGN and ALIGN_MASK to HUF_ALIGN and HUF_ALIGN_MASK
2017-06-30 09:38:11 -07:00
70ad6829e7
Delegate HUF_decompress4X_hufOnly to workspace version
2017-06-29 16:22:32 -07:00
104c4d57c1
Fix bitshift error
2017-06-29 15:40:49 -07:00
a3d9926c40
compression optimization opportunity
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switch to single-pass mode directly into output buffer
when outputSize >= ZSTD_compressBound(inputSize).
Speed gains observed with fullbench (~+15% on level 1)
2017-06-29 14:44:49 -07:00
Yann Collet
Yann Collet
Nick Terrell
cyan4973
Stella Lau