AuroraMiddleware/lz4
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
1,610 Commits 13 Branches 31 Tags 6.8 MiB
54ec83ce1f
Commit Graph

1610 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Yann Collet
99c26729b5
Merge pull request #475 from lz4/betterBench 
Better bench measurements for small inputs
 2018-02-21 05:48:58 -08:00
Yann Collet
71e16fa11a
Merge pull request #471 from lz4/fasterHC 
Faster HC
 2018-02-20 21:04:07 -08:00
Yann Collet
179670f32f use TIMELOOP_NANOSEC, 
as suggested by @terrelln
 2018-02-20 15:26:59 -08:00
Yann Collet
25b16e8a2e added one assert() 
suggested by @terrelln
 2018-02-20 15:25:45 -08:00
Yann Collet
34c1634d4b fixed minor conversion warning 2018-02-20 14:13:13 -08:00
Yann Collet
ae3dededed ensure bench speed measurement is more accurate for small inputs 
Previous method would produce too many time() invocations,
becoming a significant fraction of workload measured.

The new strategy is to use time() only once per batch,
and dynamically resize batch size so that each round lasts approximately 1 second.

This only matters for small inputs.
Measurement for large files (such as silesia.tar) are much less impacted
(though decoding speed is so fast that even medium-size files will notice an improvement).
 2018-02-20 13:09:13 -08:00
Yann Collet
1a233c5f0f update bench.c to use less time invocations 
translating into more accurate speed measurements for small sources
 2018-02-20 11:37:19 -08:00
Yann Collet
d74f079748 update API doc regarding double-buffer strategy 
answering question #473
 2018-02-18 11:00:33 -08:00
Yann Collet
9f338ae204
Merge pull request #472 from hobomind/dev 
fix: missed semicolon at programs/lz4io.c:954
 2018-02-14 13:00:50 -08:00
hobomind
b202c67234
fix: missed semicolon at programs/lz4io.c:954 2018-02-14 18:47:56 +03:00
Yann Collet
3d3d5af4e1
Merge pull request #470 from lz4/fasterDec 
Faster decoding speed
 2018-02-12 16:56:45 -08:00
Yann Collet
d3a13397d9 slight hc speed benefit (~+1%) 
by optimizing countback
 2018-02-12 00:01:58 -08:00
Yann Collet
219abab74b removed LZ4_copy8 
better use memcpy() directly
 2018-02-11 22:20:09 -08:00
Yann Collet
2b674bf02f slightly improved hc compression speed (+~1-2%) 
by removing bad candidates faster.
 2018-02-11 02:45:36 -08:00
Yann Collet
3ad3b0f850 slightly improved decompression speed (~+1-2%) 
by making shortcut slightly more common
 2018-02-11 01:43:20 -08:00
Yann Collet
f76ee4e267
Merge pull request #469 from mathstuf/intel-windows-packing-selection 
intel: do not use __attribute__((packed)) on Windows
 2018-02-08 08:45:25 -08:00
Ben Boeckel
c4671be550 intel: do not use __attribute__((packed)) on Windows 
On Windows, the Intel compiler is closer to MSVC rather than GCC and
does not support the GCC attribute syntax.

Fixes #468
 2018-02-08 09:15:27 -05:00
Yann Collet
ea25250c99 fixed code comment as detected in #466 
Also clarified a few API code comments
and updated associated html documentation
 2018-02-07 02:21:25 -08:00
Yann Collet
20e969e579 fuzzer: added low address compression test 
is expected to work on linux+gcc only.
 2018-02-05 15:19:00 -08:00
Yann Collet
e3f73fa6a6
Merge pull request #461 from terrelln/docs 
Clarify the requirements of the LZ4 streaming API
 2018-02-01 16:14:54 -08:00
Nick Terrell
e832a3d87a Clarify the requirements of the LZ4 streaming API 2018-02-01 16:08:59 -08:00
Yann Collet
99a81c89f0
Merge pull request #458 from lz4/ff161 
Minor change to LZ4 Frame format specification
 2018-02-01 10:55:02 -08:00
Yann Collet
424c773f83
Merge pull request #460 from lz4/frameCompress 
refactored frameCompress.c example
 2018-02-01 08:53:23 -08:00
Yann Collet
3ce289bcce modified decompression part of frameCompress.c 
using same logic as prior modifications for compression part.
 2018-02-01 02:48:20 -08:00
Yann Collet
25efdd80c5 refactored ressource allocation to avoid goto 2018-02-01 01:38:14 -08:00
Yann Collet
886a485845 examples/Makefile : changed dependency order 
static library *.a must come after source files *.c on linux
 2018-01-31 23:17:52 -08:00
Yann Collet
5fd3ac7904 Merge branch 'dev' into frameCompress 2018-01-31 17:18:57 -08:00
Yann Collet
d1ccd620d6 travisci : ensure "clean" betweeb 2 tests 2018-01-31 17:16:48 -08:00
Yann Collet
3b751a50c5 modified gpptest recipe 2018-01-31 17:15:02 -08:00
Yann Collet
70671ab314
Merge pull request #459 from Tyilo/clang-stdc++14 
Ensure LZ4_DEPRECATED("...") is before LZ4LIB_API
 2018-01-31 16:42:13 -08:00
Yann Collet
b515ae9c99 refactored frameCompress.c example code 
compression function returns a struct.
Also : nested structure ressources->computation
to make it easier to manage multiple exit points.
 2018-01-31 16:39:37 -08:00
Yann Collet
ff3c67fdb2 fixed read size, as noticed by @terrelln 2018-01-31 16:13:02 -08:00
Yann Collet
1acca240a9 ensure proper dependencies are built for /examples 
also : use liblz4.a static lib to share compilation time
 2018-01-31 16:11:45 -08:00
Yann Collet
87fb7a1d03 refactored frameCompress example 
to better reflect LZ4F API usage.
 2018-01-31 14:33:16 -08:00
Asger Hautop Drewsen
c129f480e7 Always prefer c++14 attributes if available 2018-01-31 20:24:44 +01:00
Yann Collet
d03224b633 fix typos as suggested by @psteinb 2018-01-31 09:54:30 -08:00
Asger Hautop Drewsen
865bd83e13 Ensure LZ4_DEPRECATED("...") is before LZ4LIB_API 
When using clang++ with std c++14 or c++17 you would get the error "an attribute list cannot appear here" when including "lz4.h" as the visibility attribute is before the c++ attribute.
This ensures that the [[deprecated]] c++ attribute is before everything
else in the function declarations.
 2018-01-31 13:33:07 +01:00
Yann Collet
fd0c125ff1 proposed a minor change to LZ4 Frame format specification 
add new terms "LZ4 Frame Header" and "LZ4 Frame Footer"
 2018-01-30 17:56:03 -08:00
Yann Collet
8258f4d9cb
Merge pull request #455 from terrelln/hc-default 
[lz4hc] level == 0 means default, not level 1
 2018-01-22 13:25:49 -08:00
Nick Terrell
30e92f320c [lz4hc] level == 0 means default, not level 1 2018-01-22 12:50:06 -08:00
Yann Collet
ad12efa4e8
Merge pull request #453 from lz4/clockfix 
fix #450 : use more restrictive conditions for clock_gettime()
 2018-01-17 12:45:09 -08:00
Yann Collet
cd63b97f96
Merge pull request #454 from sunpoet/dev 
Change file format back to ASCII (from UTF-8)
 2018-01-17 11:29:27 -08:00
Po-Chuan Hsieh
75b81bbbf0 Change file format back to ASCII (from UTF-8) 
- Replace U+00A0 by space
- Fix build failure of archivers/py-borgbackup in FreeBSD

Reference: https://bugs.FreeBSD.org/225235
 2018-01-18 03:13:05 +08:00
Yann Collet
7dba09af47 use more restrictive conditions for clock_gettime() 2018-01-16 10:21:37 -08:00
Yann Collet
b077a99347 added checkTag 
checkTag verifies that provided tag and library version match.
It's started automatically in circleCI when a new tag is created.
 2018-01-14 16:57:25 -08:00
Yann Collet
dfed9fa1d7 restored .travis 2018-01-14 00:21:43 -08:00
Yann Collet
5e7780d2d8 lz4frame : removed some intermediate stage from LZ4F_decompress() 
ensure some strange jump cases are not possible
(they were already not possible, but static analyzer couldn't understand it).
 2018-01-14 00:15:07 -08:00
Yann Collet
cdd0c685e0 Merge branch 'dev' into coverity_scan 2018-01-13 22:58:09 -08:00
Yann Collet
75e22d133e minor : try to tell static analyzer that we don't care if fseek() fails 
as already explained in comments.
 2018-01-13 22:52:17 -08:00
Yann Collet
18b4c66d25 ensure a ptr is non-null 
with an assert()
to help static analyzer understanding this condition.
 2018-01-13 22:47:46 -08:00