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Author SHA1 Message Date
Paul Cruz 880f08d104 change how completion is measured in compression thread 2017-07-23 10:18:54 -07:00
Paul Cruz 08d9e42ec6 removed useless measurements 2017-07-21 18:02:55 -07:00
Paul Cruz 95bef759b3 switched over to model where reading only waits on compression thread 2017-07-21 17:49:39 -07:00
Paul Cruz 6455ec482c taking the maximum of the completion level reads in order to determine which one was waiting more 2017-07-21 16:05:01 -07:00
Paul Cruz 05fe8dd47c updating debug statements 2017-07-21 14:06:24 -07:00
Paul Cruz db109f8fef measure multiple completion levels during each wait 2017-07-21 13:38:24 -07:00
Yann Collet ceda7a9a58 minor Makefile refactor 2017-07-21 11:44:39 -07:00
Paul Cruz 721c6a8b97 added bounding to compression level change 2017-07-21 09:30:24 -07:00
Paul Cruz e929d3b787 added priority decision making for adapt compression level 2017-07-21 09:26:35 -07:00
Paul Cruz 9259c7afa4 semi working version that stabilizes 2017-07-20 18:45:33 -07:00
Yann Collet 38ba7002f2 fixed minor warning on unused variable in shell function 2017-07-20 18:39:04 -07:00
Paul Cruz 82e488770c fixed bug where writeSize could be zero 2017-07-20 16:38:02 -07:00
Paul Cruz a19916425d reworked adaptCompressionLevel to only account for completion information 2017-07-20 16:19:16 -07:00
Yann Collet a90b16e150 Visual blind fix 2 2017-07-20 15:57:55 -07:00
Yann Collet 4542d7118c Merge branch 'dev' of github.com:facebook/zstd into dev 2017-07-20 15:12:21 -07:00
Yann Collet 5e6c5203f3 fixed fuzzer test for non OS-X platforms 2017-07-20 15:11:56 -07:00
Yann ColletandGitHub 57251f52cf Merge pull request #773 from terrelln/lk-v3 
[linux] Update patches for v3
 2017-07-20 14:47:26 -07:00
Nick Terrell 7d3ac0710d [linux] Update patches for v3 2017-07-20 13:33:55 -07:00
Paul Cruz 7ab758a640 changed how completion is actually sampled 2017-07-20 10:53:51 -07:00
Yann Collet b4d460f32c pool.c : blindfix for Visual warnings 2017-07-20 01:13:14 -07:00
Stella Lau 13a01ffb27 Fix off-by-one in size calculations 2017-07-19 17:24:09 -07:00
Stella Lau 2427a154cb Minor refactoring 2017-07-19 16:56:28 -07:00
Paul Cruz dcf609f835 make adaptCompressionLevel oscillate less 2017-07-19 16:36:33 -07:00
Yann Collet 1ca1288689 added --memtest=# command to fuzzer 
to jump directly to relevant test section
 2017-07-19 16:01:16 -07:00
Paul Cruz 2a22c7915e call ZSTD_compressBegin() once 2017-07-19 16:00:54 -07:00
Paul Cruz 6767abe652 fixing error when file size is multiple of job size (in which case, the srcSize of the last job is 0) 2017-07-19 14:54:15 -07:00
Stella Lau 030264ca51 Experiment with integrating ZSTD_count with findBestMatch 2017-07-19 14:14:26 -07:00
Yann Collet 3974d2b38a blind fix for Windows Multithreading module 
adds a fake 0 return value for mutex/cond init
 2017-07-19 13:33:21 -07:00
Paul Cruz 42382c1216 added some debug statements, adjusted end condition 2017-07-19 13:30:07 -07:00
Paul Cruz 6945b3c43d removed previous version of completion for compression 2017-07-19 11:51:50 -07:00
Paul Cruz 5a85c57e30 set up new calculations compression completion progress 2017-07-19 11:47:17 -07:00
Paul Cruz f1ac518b59 split compression into smaller blocks 2017-07-19 11:23:40 -07:00
Paul Cruz 338951cd48 moved compression adapt to avoid warning 2017-07-19 10:23:46 -07:00
Paul Cruz 4497ecf297 change compression level only right before actually performing compression. When waiting, only update waiting statistics. 2017-07-19 10:14:00 -07:00
Paul Cruz e11bf55d0b added mechanism for measuring how much of a job has been created 2017-07-19 10:10:47 -07:00
Paul Cruz 559ea4ff25 split up read process into smaller chunks 2017-07-19 09:59:17 -07:00
Paul Cruz 6119cd2164 added additional print for help menu 2017-07-19 09:43:17 -07:00
Yann Collet b71363b967 check pthread_*_init() success condition 2017-07-19 01:05:40 -07:00
Stella Lau 4352e09cb0 Avoid recounting match lengths with ZSTD_count 2017-07-18 18:35:25 -07:00
Stella Lau 1fa223859f Switch to using ZSTD_count instead of function pointer 2017-07-18 18:05:10 -07:00
Paul Cruz 3d7f1afadd changed createCCtx() to split into initialization and creation 2017-07-18 17:32:36 -07:00
Paul Cruz 2c4e4ddc50 added mutex for stats struct 2017-07-18 15:55:58 -07:00
Yann ColletandGitHub 44b0838253 Merge pull request #770 from terrelln/test-mode 
[zstdcli] Fix -t in streaming mode
 2017-07-18 15:40:59 -07:00
Paul Cruz ad66faf16a added progress check for filewriting, put important shared data behind mutex when being read from/written to 2017-07-18 15:23:11 -07:00
Yann ColletandGitHub 2aba13b770 Merge pull request #769 from terrelln/real-block-split 
[libzstd] Fix bug in Huffman encoding
 2017-07-18 14:58:26 -07:00
Nick Terrell d0b27483ae [zstdcli] Fix -t in streaming mode 2017-07-18 14:45:49 -07:00
Stella Lau 19258f51c1 Make the meaning of LDM_MEMORY_USAGE consistent across tables 2017-07-18 14:25:39 -07:00
Paul Cruz a34bc30237 setting up basic readme 2017-07-18 13:31:02 -07:00
Paul Cruz 29c36cf051 rename completion variable, split up fwrite operations in order to track progress 2017-07-18 13:30:29 -07:00
Nick Terrell cc1522351f [libzstd] Fix bug in Huffman encoding 
Summary:
Huffman encoding with a bad dictionary can encode worse than the
HUF_BLOCKBOUND(srcSize), since we don't filter out incompressible
input, and even if we did, the dictionaries Huffman table could be
ill suited to compressing actual data.

The fast optimization doesn't seem to improve compression speed,
even when I hard coded fast = 1, the speed didn't improve over hard coding
it to 0.

Benchmarks:
$ ./zstd.dev -b1e5
Benchmarking levels from 1 to 5
 1#Synthetic 50%     :  10000000 ->   3139163 (3.186), 524.8 MB/s ,1890.0 MB/s
 2#Synthetic 50%     :  10000000 ->   3115138 (3.210), 372.6 MB/s ,1830.2 MB/s
 3#Synthetic 50%     :  10000000 ->   3222672 (3.103), 223.3 MB/s ,1400.2 MB/s
 4#Synthetic 50%     :  10000000 ->   3276678 (3.052), 198.0 MB/s ,1280.1 MB/s
 5#Synthetic 50%     :  10000000 ->   3271570 (3.057), 107.8 MB/s ,1200.0 MB/s
$ ./zstd -b1e5
Benchmarking levels from 1 to 5
 1#Synthetic 50%     :  10000000 ->   3139163 (3.186), 524.8 MB/s ,1870.2 MB/s
 2#Synthetic 50%     :  10000000 ->   3115138 (3.210), 370.0 MB/s ,1810.3 MB/s
 3#Synthetic 50%     :  10000000 ->   3222672 (3.103), 223.3 MB/s ,1380.1 MB/s
 4#Synthetic 50%     :  10000000 ->   3276678 (3.052), 196.1 MB/s ,1270.0 MB/s
 5#Synthetic 50%     :  10000000 ->   3271570 (3.057), 106.8 MB/s ,1180.1 MB/s
$ ./zstd.dev -b1e5 ../silesia.tar
Benchmarking levels from 1 to 5
 1#silesia.tar       : 211988480 ->  73651685 (2.878), 429.7 MB/s ,1096.5 MB/s
 2#silesia.tar       : 211988480 ->  70158785 (3.022), 321.2 MB/s ,1029.1 MB/s
 3#silesia.tar       : 211988480 ->  66993813 (3.164), 243.7 MB/s , 981.4 MB/s
 4#silesia.tar       : 211988480 ->  66306481 (3.197), 226.7 MB/s , 972.4 MB/s
 5#silesia.tar       : 211988480 ->  64757852 (3.274), 150.3 MB/s , 963.6 MB/s
$ ./zstd -b1e5 ../silesia.tar
Benchmarking levels from 1 to 5
 1#silesia.tar       : 211988480 ->  73651685 (2.878), 429.7 MB/s ,1087.1 MB/s
 2#silesia.tar       : 211988480 ->  70158785 (3.022), 318.8 MB/s ,1029.1 MB/s
 3#silesia.tar       : 211988480 ->  66993813 (3.164), 246.5 MB/s , 981.4 MB/s
 4#silesia.tar       : 211988480 ->  66306481 (3.197), 229.2 MB/s , 972.4 MB/s
 5#silesia.tar       : 211988480 ->  64757852 (3.274), 149.3 MB/s , 963.6 MB/s

Test Plan:
I added a test case to the fuzzer which crashed with ASAN before the patch
and succeeded after.
 2017-07-18 13:20:40 -07:00