MobileRead Forums - View Single Post - Calibre opens very slowly with large library?

Adoby · 09-18-2012, 06:55 AM

If you have custom columns that depends on other columns, then I believe all values have to be initiated when you start Calibre. I have my metadata.db on a SSD drive and still noticed this very clearly. When I deleted those columns startup was fast again.

I have my metadata.db on SSD but the Calibre library on a NAS. I use a symlink in the Calibre library to the real file on the SSD, to speed up things. Calibre became a little bit more responsive that way.

Make sure you have enough memory in the computer.

You say you have no custom columns, so that may not be the problem, unless they are hidden?

I don't believe Calibre even access the actual books when starting. Only metadata.db.

09-18-2012, 06:55 AM	#11
Adoby Handy Elephant Posts: 1,737 Karma: 26785684 Join Date: Dec 2009 Location: Southern Sweden, far out in the quiet woods Device: Samsung Galaxy Tab S8 Ultra	If you have custom columns that depends on other columns, then I believe all values have to be initiated when you start Calibre. I have my metadata.db on a SSD drive and still noticed this very clearly. When I deleted those columns startup was fast again. I have my metadata.db on SSD but the Calibre library on a NAS. I use a symlink in the Calibre library to the real file on the SSD, to speed up things. Calibre became a little bit more responsive that way. Make sure you have enough memory in the computer. You say you have no custom columns, so that may not be the problem, unless they are hidden? I don't believe Calibre even access the actual books when starting. Only metadata.db. Last edited by Adoby; 09-18-2012 at 07:09 AM.