Nick Terrell
de0414b736
[libzstd] Pull CTables into sub-structure
2017-07-12 19:49:19 -07:00
Stella Lau
92bed4a7e0
[ldm] Add CHAR_OFFSET in hash function and extend header size
2017-07-12 18:47:26 -07:00
Yann Collet
d6799635a5
Merge pull request #756 from facebook/memOpt
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Memory optimisations for ZSTDMT
2017-07-12 18:32:37 -07:00
Paul Cruz
7c886db0a8
changed to stderr
2017-07-12 17:28:53 -07:00
Paul Cruz
b5b18cf664
changed to malloc, added comment about adaptive compression level, and changed ternary operators
2017-07-12 17:10:58 -07:00
Paul Cruz
954d999abf
fixed up freeCCtx() removed BYTE since it wasn't being used
2017-07-12 16:50:43 -07:00
Paul Cruz
3c16edd26a
added copyright header, removed clean from makefile
2017-07-12 16:40:24 -07:00
Stella Lau
8de82b6eb0
[ldm] Clean up versions
2017-07-12 16:31:31 -07:00
Paul Cruz
74d3a6f5ae
passes tests with adaptive compression level
2017-07-12 16:18:41 -07:00
Paul Cruz
5353d350ae
working with fixed compression level and fixed dictionary size
2017-07-12 16:02:20 -07:00
Stella Lau
8ff8cdb15b
[ldm] Clean up code
2017-07-12 15:12:07 -07:00
Yann Collet
33cecaaaca
Merge branch 'dev' of github.com:facebook/zstd into dev
2017-07-12 14:38:36 -07:00
Yann Collet
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
Paul Cruz
356ddb649f
working with flush job->src.size and fixed cLevel
2017-07-12 12:21:21 -07:00
Stella Lau
3a48ffd4fd
Fix sumToHash to use hash space more efficiently
2017-07-12 10:53:19 -07:00
Stella Lau
e0d4162464
Minor fix for non-rolling hash
2017-07-12 09:50:24 -07:00
Stella Lau
50502519fb
Switch to using rolling hash only
2017-07-12 09:47:00 -07:00
Stella Lau
583dda17a8
Update rolling hash
2017-07-11 18:13:26 -07:00
Yann Collet
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
Paul Cruz
0a401852c4
added debug statement
2017-07-11 16:50:50 -07:00
Yann Collet
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
Paul Cruz
72a183efad
changed dictionary size, added debugging statements
2017-07-11 15:49:52 -07:00
Yann Collet
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
Paul Cruz
7c54e09347
updated DEBUG statements
2017-07-11 15:15:41 -07:00
Paul Cruz
a3c077b8c6
added error message, updated copying dictionary into the input buffer
2017-07-11 15:00:52 -07:00
Yann Collet
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
Yann Collet
16261e6951
buffer pool can be invoked from multiple threads
2017-07-11 14:14:07 -07:00
Yann Collet
fe80d45807
Merge pull request #755 from jacquesg/solaris
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Solaris fix
2017-07-11 12:11:44 -07:00
Paul Cruz
34afb9b23e
changed to using ZSTD_compressBegin_usingDict() and fixed strange issue with ZSTD_compressContinue()
2017-07-11 11:50:00 -07:00
Jacques Germishuys
c325c8db82
fix missing symbol 'nanosleep' for Solaris
2017-07-11 19:26:10 +02:00
Paul Cruz
7ec5928626
fixed an error where -c argument wasn't working for single files
2017-07-11 10:23:25 -07:00
Stella Lau
f6c5d07fe2
Save v3
2017-07-11 09:23:44 -07:00
Yann Collet
ef0ff7fe7f
zstdmt: removed margin for improved memory usage
2017-07-11 08:54:29 -07:00
Stella Lau
6c3673f4c3
Add rolling hash
2017-07-10 22:27:43 -07:00
Paul Cruz
f918545491
made some progress on improving compression ratio, but problems exist with speed limits, and for some reason higher compression levels are really slow
2017-07-10 18:16:42 -07:00
Yann Collet
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
Yann Collet
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
Paul Cruz
01fc7c4244
changed how the detection of the last job works
2017-07-10 16:27:58 -07:00
Paul Cruz
c36552ef8a
dst buffer should use ZSTD_compressBound to determine how much space it needs
2017-07-10 16:10:19 -07:00
Paul Cruz
7aa36df6df
fixed memory leak that was happening when creating jobs
2017-07-10 16:03:09 -07:00
Stella Lau
ef2b728316
Clean up and refactor compress function
2017-07-10 15:48:47 -07:00
Paul Cruz
e410d63d45
made input buffer an internal part of the compression context
2017-07-10 15:37:14 -07:00
Yann Collet
3510efb02d
fix : custom allocator correctly propagated to child contexts
2017-07-10 14:21:40 -07:00
Yann Collet
ee3423d709
extended fuzzer MT memory tests
2017-07-10 14:09:16 -07:00
Yann Collet
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
Yann Collet
f9524cf366
added --memtest to fuzzer
2017-07-10 13:48:41 -07:00
Stella Lau
e4155b11d7
Add warning flags to makefile and clean up code to remove warnings
2017-07-10 13:08:19 -07:00
Stella Lau
10a71d9f1c
Add compression context
2017-07-10 12:38:27 -07:00
Yann Collet
e32fb0c1fe
added ZSTD_sizeof_CCtx() test
2017-07-10 12:29:57 -07:00
Paul Cruz
89190ef07d
renamed pool.c to poolTests.c
2017-07-10 11:32:30 -07:00
