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by 2ion
1576 days ago
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a tar.something is just a tar archive passed through a compression filter like zstd or gzip. Anyway, tar needs metadata extensions in order to allow random access; most tarballs you'll find don't. So you need to read 5TB of data to find the file at point 5TB in an archive of size 10TB. Which is why as a general purpose archiving format, tar needs to be applied to use cases where it works. It gets old really quick if you don't have random access and random access requirements, plus, remediated by SSDs these days for a bit, it's really time consuming. |
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