this post was submitted on 12 Jan 2025
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Interesting. Mind sharing which compression algorithms you compare and how?
winrar, (almost) all options available in peazip, I explore the options available in the then latest tar and zip commands under debian, and I look around to try some novelty stuff or if there's anything experimental.
I go one by one, setting up scripts to compress a directory with a particular algorithm and compression configuration. (and to record timstamps, check integrity, etc). Then collect a reasonably representative set of files from my ssd's.
Writing those scripts takes a few hours, but after that I hit run, and usually just screen record to a seperate ssd. After (usually) about a little over a day I can look back and see how long things took, and also have a video of all of them. I scrub it just to make sure nothing glitched out.
I have to say though, winrar's lead had shrunk a lot in my last test. Despite the new rar5 thing. Perhaps the next time will be different.
When is the next time? When I feel like it. After all, this is just a weird hobby I really enjoy.
What are the results?
I'd have to dig down my pc files for details. But winrar and 7z we're at the top of the stack, and lzma was a surprising 3rd place. Apparently some updates were made to the algorithm