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by nknighthb
4756 days ago
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> If you haven't actually looked at the block allocation patterns of common filesystems I have. > you can't say conclusively that fuzzbang is incorrect And I can. I'm aware of the degree of difference in speed. It is sufficient that it is standard practice for filesystems to be restricted to the first 1/4-1/2 of a spinning disk in performance-sensitive applications. Or at least it was, in the last few years we've become more likely to just use SSDs or keep everything in RAM. > if that 200MB file is stored in 100 2MB fragments Thank you for assuming I don't even have the knowledge of a typical computer user, it greatly increases the likelihood I'll not waste further time with you. Raises it, in fact, to 100%. |
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I have.
And? What distribution of block allocation did you observe on said filesystems? Does it contradict the original supposition that filesystems spread out allocations to prevent fragmentation, thus possibly overwriting hidden data at the end of a partition?
It is sufficient that it is standard practice for filesystems to be restricted to the first 1/4-1/2 of a spinning disk in performance-sensitive applications.
This has as much to do with seek times as sequential reading speed. A drive with 8ms average seek times might average 2ms if you only make the heads travel 25% of the width of the platter.
The fact that you have to restrict the filesystem to the beginning of the disk suggests that filesystems don't do this automatically.
Thank you for assuming I don't even have the knowledge of a typical computer user, it greatly increases the likelihood I'll not waste further time with you. Raises it, in fact, to 100%.
I'm not sure how you got that impression. I was just providing numbers to complete the example. There's no need to become defensive; and if you find that you might be wrong, saying, "That's a fair point, I'll have to do some more research," goes a lot further than continuing to beat a dead horse.
Maybe it's the fact that this thread is on an article related to law, politics, and morality that is causing needless argumentation.