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Originally Posted by Gwen Morse
Calibre had been loading/running faster and faster on my Windows 7 64 bit dual-core system with each update.
In either 20 or 21 it suddenly slowed to a crawl. I have about 2800 books in my database.
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In 0.7.21 the following was added.
Quote:
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Automatic backup of the calibre metadata database "calibre now automatically backups up the metadata for each book in the library into an individual OPF file in that books' folder. This means that if the calibre metadata database is corrupted, for example by a hard disk failure, you can reconstruct it from these OPF files, without losing any metadata. For the moment, only the backup is implemented, restore will be implemented in the future. The backup happens automatically in the background while calibre is running. The first time you start calibre, all the books will need to be backed up, so you may notice calibre running a little slower than usual."
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Once it runs for a while (an hour plus) the slowness should go away. However there were a few other items that needed minor correcting that were fixed in 0.7.22, have you upgraded?
Also since 2800 opf files are being created your anti-virus is working overtime and if you have your library synced via Dropbox or something similar this adds to the initial slowdown.