Thread: Slow Edit metadata window
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Old 03-09-2014, 04:17 PM   #56
BetterRed
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Quote:
Originally Posted by z.nina View Post
@BetterRed Sorry for the late answer. I've installed Calibre Portable in the USB3 HD and copied the library in there. The problem is the same. I've to wait more than 30 sec for the metadata editor to move to the next book
The problem is the same even if I use a different PC with win 7 64 bit( I don't have a PC with win7 32 bit so I don't know if that maybe a issue).

I've set the environment variable on my main PC (many many thanks for the detailed explanation !!!!) and the problem is solved
@z.nina - Well we learnt something, as I suggested we might

I'm shocked to 'learn' the lack of disk control space would create delays of 60 seconds to move to the Next Book in Metadata Edit without doing any edits on the current book - when I assume calibre would do no writes. I might have believed 1 or 2 seconds, even 5 but... not a minute or more!

I have a 6GB Windows 7 system with an i5 processor, I have 2x2TB internal SATA2 drives and 2x2TB external drives in a 2 slot USB3 dock attached to a PCIe USB3 adapter. The drives are WD Black Caviar, unpartitioned, included in AV scanning, included in content indexing, have write caching enabled, and the two external drives are also compressed.

I keep my libraries (4,000-35,000 books) on the internal non-system disk, with a copy on one of the USB3 externals.

I don't have any delays of any significance in Metadata Edit (sub-second response), or elsewhere in calibre. Calibre performance is even faster on the external drives - but so is everything else.

I run ~20 programs in my system tray. When I run calibre I'm typically running (in addition to the tray applets), xplorer2, conEMU, firefox, quodlibet, notepad++, utorrent, and at least one or two of, DAMWerks, chrome, excel, word, autocad, outlook, avidemux, mpc, VS2010. I also dive in and out of the ebook-viewer and ebook-editor programs. Calibre's performance is the same at the end of the day as it was at the beginning, I don't close it, or anything else unless there's a reason - eg I change a Tweak.

I run a similar application to calibre to manage a large engineering image collection (+2M images), it keeps all the metadata (much much more per image than any ebook has) in a relational database. I don't have any performance problems with it either.

I'm tempted to remove 2GB to see what difference it does make

Be interesting to know if other users with this 'problem' can overcome it by using the CALIBRE_OVERRIDE_DATABASE_PATH env. variable.

BR
Last edited by BetterRed; 03-09-2014 at 05:08 PM.
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