Thread: Pros & Cons of using the Calibre GUI
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Old 08-05-2018, 06:32 PM   #24
BetterRed
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@sealbeater - template based custom columns can make startup times slow, in particular templates that necessitate access beyond the metadata database - i.e. to the file system or network.

My biggest library, of a ~140,000 books, located on a Toshiba 2TB Sata III drive, does not have any non-metadata based template based custom columns. Starting calibre with that library in the All Books VL takes 7-10 seconds. That's on a 16GB i7 with a 256GB NVme system drive running Windows 10 Pro.

BR
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