ddidderr/zstd-rs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
11,127 Commits 17 Branches 77 Tags
v1.5.7-kernel
Commit Graph
2464 Commits
Author SHA1 Message Date
Nick Terrell 5d9fb47850 [linux] Opt out of row based match finder for the kernel 
The row based match finder is slower without SIMD. We used to detect the
presence of SIMD to set the lower bound to 17, but that breaks
determinism. Instead, specifically opt into it for the kernel, because
it is one of the rare cases that doesn't have SIMD support.
 2025-03-11 12:54:22 -07:00
Yann Collet d2c562b803 update hrlog comment 2025-02-10 10:48:56 -08:00
Yann Collet 67fad95f79 derive hashratelog from hashlog when only hashlog is set 2025-02-10 10:46:37 -08:00
Yann ColletandYann Collet 09d7e34ed8 adjust mml 2025-02-10 10:46:37 -08:00
Yann ColletandYann Collet d5e4698267 fix boundary condition 2025-02-10 10:46:37 -08:00
Yann ColletandYann Collet 72406b71c3 update hrlog rule to favor compression ratio a bit more at low levels 2025-02-10 10:46:37 -08:00
Yann ColletandYann Collet f26cc54f37 dynamic bucket sizes 2025-02-10 10:46:37 -08:00
Yann ColletandYann Collet 4609a40b89 dynamically adjust hratelog and ldmml based on strategy 2025-02-10 10:46:37 -08:00
Yann Collet 23e5f80390 Revert "pass dictionary loading method as parameter" 
This reverts commit 821fc567f93a415e9fbe856271ccd452ee7acf07.
 2025-02-05 18:47:26 -08:00
Yann Collet c7cd7dc04b better MT fluidity 
--patch-from no longer blocked on first job dictionary loading
 2025-02-05 18:42:00 -08:00
Yann Collet f11bd19c7f ensure cdict is properly reset to NULL 2025-02-05 18:42:00 -08:00
Yann Collet 7406d2b6eb skips the need to create a temporary cdict for --patch-from 
thus saving a bit of memory and a little bit of cpu time
 2025-02-05 18:42:00 -08:00
Yann Collet 220abe6da8 reduced memory usage 
by avoiding to duplicate in memory
a dictionary that was passed by reference.
 2025-02-05 18:42:00 -08:00
Yann Collet 85a44b233a always free .cdictLocal 2025-02-05 18:41:59 -08:00
Yann Collet e637fc64c5 update type naming convention 2025-02-05 18:41:59 -08:00
Yann Collet 34ba14437a minor boundary change 
improves compression ratio at low levels
 2025-02-05 18:41:59 -08:00
Yann Collet ffa66a6971 fix speed of --patch-from at high compression mode 2025-02-05 18:41:59 -08:00
Yann Collet e117d79e22 fix minor alignment warning 2025-02-05 16:13:58 -08:00
Yann Collet c39424ea87 fix minor alignment warning 
this is a prototype definition error:
`_mm_storeu_si128()` should accept a `void*` pointer,
since it explicitly states that it accepts unaligned addresses
yet requiring a `__m128i*` tells otherwise, and requires the compiler the enforce this alignment.
 2025-02-05 16:11:54 -08:00
Yann Collet 32dff04d32 fix one minor alignment warning 
seems like a prototype interface error:
input parameter should have been `const void*`,
since the documentation is explicit that input doesn't have to be aligned,
but `const __m256i*` makes the compiler enforce it.
 2025-02-05 15:46:44 -08:00
Yann Collet f0b5f65bca fixed minor static function declaration issue 
in AVX2 mode only
 2025-01-18 22:49:16 -08:00
Yann ColletandGitHub 19025f3da0 Merge pull request #4238 from szsam/patch-1 
fix out-of-bounds array index access
 2025-01-15 17:56:41 -08:00
Yann ColletandYann Collet 87f0a4fbe0 restore full equation 
do not solve the equation, even though some members cancel each other,
this is done for clarity,
we'll let the compiler do the resolution at compile time.
 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 8bff69af86 Alignment instruction ZSTD_ALIGNED() in common/compiler.h 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 2f3ee8b530 changed code compilation test to employ ZSTD_ARCH_X86_AVX2 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet debe3d20d9 removed unused branch 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet e3181cfd32 minor code doc update 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet aa2cdf964f added compilation-time checks to ensure AVX2 code is valid 
since it depends on a specific definition of ZSTD_Sequence structure.
 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 57a4554192 removed unused variable 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 4aaf9cefe9 fix minor conversion warning 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet db3d48823a no need for specialized variant 
the branch is not in the hot loop
 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet cd53924eff removed erroneous #includes 
that were automatically added by the editor without notification
 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet ed0a8b8be1 AVX2 version of ZSTD_get1BlockSummary() 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet b6a4d5a8ba minor +10% speed improvement for scalar ZSTD_get1BlockSummary() 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 8eb2587432 added benchmark for get1BlockSummary() 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 8d62164589 control long length within AVX2 implementation 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet d1f0e5fb97 fullbench can run a verification function 
compressSequencesAndLiterals: fixed long lengths in scalar mode
 2025-01-15 17:11:27 -08:00
Yann ColletandYann Collet 886720442f initial implementation (incomplete) 
needs to take care of long lengths > 65535
 2025-01-15 17:11:27 -08:00
Mingjie ShenandGitHub afff3d2cce return error if block delimiter is not found 2025-01-13 20:52:06 -05:00
Mingjie ShenandGitHub e490be895c fix out-of-bounds array index access 2025-01-13 16:39:34 -05:00
Victor ZhangandGitHub a610550e2c Merge pull request #4218 from facebook/externC 
Move #includes out of `extern "C"` blocks
 2025-01-07 10:06:08 -08:00
Victor Zhang d88651e604 Do not vary row matchfinder selection based on availability of SSE2/Neon 
Move towards a stronger guarantee of reproducibility by removing this small difference for machines without SSE2/Neon.
The SIMD behavior is now the default for all platforms.
 2025-01-03 09:35:18 -08:00
Nick TerrellandNick Terrell 1548bfc349 [opt] Fix too short of match getting generated 
The optimal parser with LDM enabled using minMatch > 3 could generate a match
length of 3 when minMatch >= 4. This is not allowed.

1. Fix the bug
2. Add validation logic to `ZSTD_buildSeqStore()` in debug mode for all block
   compressors that checks we never generate too short a match. This way we don't
   rely on the `generate_sequences` fuzzer to find this issue.

Credit to OSS-Fuzz
 2025-01-03 11:38:41 -05:00
Yann Collet 47cbfc87a9 restore invocation of ZSTD_entropyCompressSeqStore() 
in the ZSTD_compressSequences() pipeline
 2024-12-20 10:37:01 -08:00
Yann Collet 522adc34eb minor: use MEM_writeLE24() 
so that an empty frame needs only 3 bytes of dstCapacity.
 2024-12-20 10:37:01 -08:00
Yann Collet b7a9e69d8d added parameter litCapacity 
to ZSTD_compressSequencesAndLiterals()
to enforce the litCapacity >= litSize+8 condition.
 2024-12-20 10:37:01 -08:00
Yann Collet 76445bb379 add a check, to return an error if Sequence validation is enabled 
since ZSTD_compressSequencesAndLiterals() doesn't support it.
 2024-12-20 10:37:01 -08:00
Yann Collet ab0f1798e8 ensure that srcSize is controlled 2024-12-20 10:37:00 -08:00
Yann Collet b339efff2b add dedicated error code for special case 
ZSTD_compressSequencesAndLiterals() cannot produce an uncompressed block
 2024-12-20 10:37:00 -08:00
Yann Collet 0a54f6f288 ZSTD_compressSequencesAndLiterals requires srcSize as parameter 
this makes it possible to adjust windowSize to its tightest.
 2024-12-20 10:37:00 -08:00