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Compression! (lemmy.dbzer0.com)

submitted 3 days ago by irelephant@lemmy.dbzer0.com to c/iiiiiiitttttttttttt@programming.dev

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[–] menas@lemmy.wtf 14 points 2 days ago (5 children)

haha. I spent so much time looking for an efficient compression algorithm for audio and movies ... until I finally understood there are already compressed X) However it allow me to discover zst, wich is uncredible with text :

 35M test.log
801K test.7z
  32 test.log.7z
  46 test.log.tar.bz2
  45 test.log.tar.gz
 108 test.log.tar.xz
  22 test.log.tar.zst
2,1M test.tar.bz2
8,1M test.tar.gz
724K test.tar.xz
1,1M test.tar.zst
8,1M test.zip

[–] UnrepentantAlgebra@lemmy.world 10 points 2 days ago (2 children)

Am I reading that correctly that test.log.7z compressed 35 mB of text into 32 bytes?

[–] rbn@sopuli.xyz 7 points 2 days ago (1 children)

And .tar.zst into 22!?

What was that log file? Millions of identical characters?

[–] Tangent5280@lemmy.world 1 points 1 day ago

Email written only with the letter 'P'

[–] menas@lemmy.wtf 2 points 1 day ago

I shall have check. No for some reason some archives failed. Not 7z, but it size is 800kB :

35M test.log
804K test.7z    
8,1M test.tar.gz
8,1M test.zip
724K test.tar.xz
2,1M test.tar.bz2
1,1M test.tar.zst

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