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Old 25-01-2017, 08:54
Bulat Bulat is offline
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1. computers are different
2. speed depends on the data
3. we usually measure speed of decompressed stream i.e. if in 1 second 20 mb are decompressed into 60 mb, we say that the speed is 60 mb/s

try to compare with 7-zip/xz speed and you will find that arc is pretty close
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Old 25-01-2017, 09:02
doofoo24 doofoo24 is offline
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Bulat you right using 7z
[External compressor:lzma2]
header = 0
packcmd = 7z a -txz -an -mcrc=0 -m1=lzma2:d128m:fb=273:mf=bt4:mc=10000:lc=4:lp=0 -mmt=8 -mx9 -si -so <stdin> <stdout>
unpackcmd = 7z x -txz -an -y -si -so <stdin> <stdout>

with freearc is almost the same as using lzma in freearc and the built-in lzma give better ratio 0.5% to 1%.
but i have other question why ZSTD IS WORST THAN 4X4:LZMA in decompression speed i have I7 6700K 4.7GH OVERCLOCK WITH SSD NVME
4x4:lzma decompress around 1gb/ sec but use more memory and cpu to the full while zstd only use 128mb of memory but limit to 400 to 500 mb /sec.
i find it odd ?
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Old 25-01-2017, 09:18
Gupta Gupta is offline
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Quote:
Originally Posted by doofoo24 View Post
but i have other question why ZSTD IS WORST THAN 4X4:LZMA in decompression speed i have I7 6700K 4.7GH OVERCLOCK WITH SSD NVME
4x4:lzma decompress around 1gb/ sec but use more memory and cpu to the full while zstd only use 128mb of memory but limit to 400 to 500 mb /sec.
i find it odd ?
you have a good pc, only if u have what u says
but u should first read some Forums post and others to understand
How actually stuffs works?

@Bulat can you do something for this pls
http://fileforums.com/showthread.php...681#post452681
http://fileforums.com/showthread.php...684#post452684
http://fileforums.com/showthread.php...762#post452762
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