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Allan Jude
2,947 followers -
Network Engineer/Security Analyst, Server Admin, Teacher, Podcaster and Web App Developer
Network Engineer/Security Analyst, Server Admin, Teacher, Podcaster and Web App Developer

2,947 followers
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Cool robot I saw in Japan

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BSDCan 2014
41 Photos - View album

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BSDCan
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2014-05-19
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Did a gource render (3d graphical representation of source code history) of the FreeBSD project's 20 year revision control history. The raw video footage came out at nearly 3.6 terabytes. Luckily #ZFS #LZ4 compression saved me from having half of my entire storage server eaten up:

media/gource  used                             705G
media/gource  available                      6.08T
media/gource  referenced                   705G
media/gource  compressratio             6.91x
media/gource  refcompressratio        6.91x
media/gource  written                          704G
media/gource  logicalused                   3.55T

I don't quite understand how it is calculating the compression ratio, but I am glad it saved my that much space (uncompressed .PPM video file)

Maybe +Matthew Ahrens can explain the [ref]compressratio figure

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The first BSD Now is OUT: http://bit.ly/bsdnow1

+Allan Jude and +Kris Moore show you how to avoid intrusion detection systems, chat with Peter Hessler about #BGP spam blacklists, cover the news and more!

Enjoy: http://bit.ly/bsdnow1
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