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Lzturbo: The fastest now more faster.
LzTurbo: The fastest now more faster
# New version : - the fastest compressor now more faster. - improved compression/decompression speed. - improved compression. LzTurbo beats Lzma in compression with equivalent decompression speed. - new TurboANX asymmetric numeral system w. JIT switching [scalar/SSE/AVX2]. Arithmetic coding rate at byte coding speed (see entropy coder benchmark http://encode.ru/threads/1890-Benchm...Entropy-Coders ). Decoding speed [up to 1Gb/s] faster than most compressors with byte coding. Can decompress 10 times and more faster than lzma with a bit less compression ratio - Compression speed up to: 800 MB/s and decompression speed up to 4 GB/s per core (tested on a 2600k cpu at 4.5 GHz) - Standard input/output (stdin/stdout) Download LzTurbo v1.2 for Windows and Linux at: http://sites.google.com/site/powturbo.. The only problem I am getting with lzturbo is, I am not able to use its <stdin> <stdout> function... I checked it on a file of 312mb size... pzlib+srep+lzma =121mb pzlib+srep+zcm =110mb pzlib+srep+lzturbo=107mb pzlib+srep+nanozip=105mb... decompression speed was way too better than lzma... Please help if someone know how to use stdin stdout of lzturbo. |
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#2
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C Size ratio% C MB/s D MB/s Name
32798929 32.8 2.79 65.49 lzma 9 32922377 32.9 1.61 69.65 lzturbo 49 lzma wins, and i have notice that fazip's lzma is little bit fast and gets u even better compression If u want to get do some real benchmarks with lzturbo https://github.com/powturbo/TurboBench
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#3
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@Prince: I only want to know best compressor... is lzma9 compatible with inno, I mean, does lzma 9 support stdin stdout, if yes can u give linkt to it...
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#4
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Personally I would not change lzma with lzturbo, although the latter is a sufficiently valid compressor.
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oltjon (17-03-2017) |
#5
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@felice... Although the creator mentions about lzturbo std stdout function,but it seems not working...
BTW, what switches can be used with lzma for better compression.. |
#6
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@ZakirAhmad ...ex "lzma:a1:mfbt4:d256m:fb128:mc1000:lc8"
Here a detailed explanation of the options to assistance to properly configure the compressor based on your requirements. Code:
a=[0|1] : ( Defaul 1 ) : Sets compressing mode a=[0|1] : Sets compression mode: 0 = fast, 1 = normal. Default value is 1. mf={MF_ID} : ( Defaul 1 ) : Sets Match Finder mf={MF_ID} : Sets Match Finder for LZMA. Default method is bt4. Algorithms from hc* group don't provide a good compression ratio, but they often work pretty fast in combination with fast mode (a=0). Memory requirements depend on dictionary size (parameter "d" in table below). MF_ID Memory Description bt2 d*9.5 + 4 MB Binary Tree with 2 bytes hashing. bt3 d*11.5 + 4 MB Binary Tree with 3 bytes hashing. bt4 d*11.5 + 4 MB Binary Tree with 4 bytes hashing. hc4 d*7.5 + 4 MB Hash Chain with 4 bytes hashing. Note: Your operation system also needs some amount of physical memory for internal purposes. So keep at least 32MB of physical memory unused. d={Size}[b|k|m] : ( Defaul 24 ) : Sets Dictionary size d={Size}[b|k|m] : Sets Dictionary size for LZMA. You must specify the size in bytes, kilobytes, or megabytes. The maximum value for dictionary size is 1 GB = 2^30 bytes. Default values for LZMA are 24 (16 MB) in normal mode, 25 (32 MB) in maximum mode (-mx=7) and 26 (64 MB) in ultra mode (-mx=9). If you do not specify any symbol from the set [b|k|m], the dictionary size will be calculated as DictionarySize = 2^Size bytes. For decompressing a file compressed by LZMA method with dictionary size N, you need about N bytes of memory (RAM) available. fb={NumFastBytes} : ( Defaul 32 ) Sets number of Fast Bytes for Deflate encoder. fb={NumFastBytes} : Sets the number of fast bytes for the Deflate/Deflate64 encoder. It can be in the range from 3 to 258 (257 for Deflate64). Usually, a big number gives a little bit better compression ratio and a slower compression process. A large fast bytes parameter can significantly increase the compression ratio for files which contain long identical sequences of bytes. mc={N} : ( Defaul 32 ) : Sets Number of Cycles for Match Finder mc={N} : Sets number of cycles (passes) for match finder. It can be in range from 0 to 1000000000. Default value is (16 + number_of_fast_bytes / 2) for BT* match finders and (8 + number_of_fast_bytes / 4) for HC4 match finder. If you specify mc=0, LZMA will use default value. Usually, a big number gives a little bit better compression ratio and slower compression process. For example, mf=HC4 and mc=10000 can provide almost the same compression ratio as mf=BT4. lc={N} : ( Defaul 32 ): Sets number of Literal Context bits - [0, 8] lc={N} : Sets the number of literal context bits (high bits of previous literal). It can be in range from 0 to 8. Default value is 3. Sometimes lc=4 gives gain for big files.
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romulus_ut3 (03-04-2017) |
#7
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For me,lzturbo
eats a hugh amount of RAM at de/compression. It has no percentage display Afaik its source stolen from Bulat Z., author of Freearc.... Summa summarum,its based on Bulat's Tornado. Its better if you stick with it. ![]() ![]() |
#8
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how to use stdin/out ?
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#9
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TOR internally supported by ARC.EXE.
Or u can use externally TOR64.EXE,but cant tell you the parameters atm. (Im on mobile) GOOGLE for it on encode.ru. there will be somewhere the parameters. AFAIK laest tor64 is v0.6a. |
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