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Old 04-29-2019, 10:11 AM   #19
ilovejedd
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Posts: 5,110
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Join Date: Jan 2009
Location: in the middle of nowhere
Device: PW4, PW3, Libra H2O, iPad 10.5, iPad 11, iPad 12.9
Quote:
Originally Posted by BetterRed View Post
My media library is 853.20 GB, 8,768 titles, 26,853 files ('format' files, covers, and opfs), the database 7,367,680 bytes. That's ~100MB per title.

It lives on a 4TB WD Black spinning platter drive. I moved the database to an empty 256GB SATA SSD drive, made no discernible difference to library performance, so I moved it to my 512GB PCIe M.2 system SSD, start times went from ~8 secs to ~4 secs, otherwise no discernible difference.

I figure the most I would gain from keeping my library databases on a high end SSD would be a minute or two a day. Needless to say I won't be bothering.
Thank you for the info.

I've probably got very unusual usage patterns. I don't use Calibre GUI on a daily basis but when I do use it, it's to do mass import, metadata changes (from local data) and copying. I think I spend like 2-4 hours working with the library. Even most of my conversions are I/O limited. Hence, I actually do store my full library on SSD and not just metadata.db. I tried moving my library (well, Calibre Portable) to HDD and iirc, it doubled my processing time.
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