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Old 11-17-2021, 04:53 PM   #6699
ilovejedd
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Posts: 5,136
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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 bpothier View Post
This isn't strictly a FFF issue, but Calibre seems to take a *LOOOOONG* time when it gets to the updating books stage - after the Yes/No/View Log part.

I recently had FFF update 2000 books using the cached metadata field. It took under an hour for FFF to do its part, but Calibre took close to 20 hours to import those updated books. This is on Win10, and looking at resmon, Calibre doesn't seem to be doing much during this stage - no heavy CPU, disk or network activity. It often goes "Not Responding" and then resumes. Are there any suggested tweaks to speed up this part of things?

One "small" thing, still running Calibre 64bit 4.23.0 - no real reason not to jump to 5.x at this point, was just holding off initially for plugins to catch up...
Hardware specs?

I did an import test one time on various storage media. The import was unbearably slow on my netbook HDD (10x slower compared to a Samsung 830 SSD).

I eventually learned the 2.5" 7.5mm thick HDD that was pre-installed on the netbook was using Shingled Magnetic Recording (SMR). I think all those small database writes were too much for the poor drive.

Also, try vacuuming your Calibre database. It might have gotten bloated.

P.S. How many books do you have in the library? If you've got like tens or hundreds of thousands, the performance drop can be understandable.

Last edited by ilovejedd; 11-17-2021 at 05:19 PM.
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