On Fri, Oct 24, 2025 at 7:33 PM home user via users < [email protected]> wrote:
> (addressing compression) > > Turning off compression is what I'm mainly wanting to do. > I frequently make large copies from or to removable media. That takes a > lot of time. Compression and decompression will make that even longer. > I've occasionally had to look into files with a hex editor. Might > compression interfere with that? > I have other private reasons. > As others have mentions compression should not affect normal file operations for typical use cases. On modern systems, compression usually makes file operations faster: less mass-storage I/O and lots of fast CPU resources. If you are running high priority background tasks (real-time processing) that keep CPU's busy, compression could slow things down. I have over 3 decades experience with satellite ocean remote sensing data so have done many tests to verify that compression didn't slow down batch processing. Our data had very high missing value content (highly compressible). Some users insisted they needed uncompressed data, often creating "disk full" problems. Some users did conclude that compression was reducing data quality after encountering bitrot based on misunderstanding of usenet discussions dealing with lossy methods. -- George N. White III
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