To start with I am running a Dell Optiplex 745, Windows XP, Core 2 Duo with 3.5 gigs of ram. I am using Symantec Endpoint Version 11.0.2010.25 in the default configuration handling my antivirus, antispam, proactive threat protection and firewall. Calibre takes 3 seconds to the splash screen and another 16 seconds to load 4000+ books.
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Originally Posted by johnwayneb
The main issue for me is that the UI very unresponsive and the tool in general is rather unstable.
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That's very interesting all I've seen in the last year is improvement in speed and a relatively stable platform.
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Originally Posted by johnwayneb
For example, simply bringing up the Preferences dialog box takes way longer than it should. Navigating the Preferences dialog is also slow.
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Bringing up the preferences for me takes about a second and navigating through it is virtually instantaneous.
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Originally Posted by johnwayneb
I have tried running it on both a Windows 7 machine (8x cores, dual raid, 8 gig ram) and a super cheap Ubuntu laptop. The specs of the machine are irrelevant and performance is poor on both.
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Seems odd that either platform would be slow.
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Originally Posted by johnwayneb
Also, do not tell me to disable my virus checker. That's insulting.
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No one has told anyone to disable their antivirus, they have indicated the possibility of exempting the main library from the scan. This is needed with some AV programs on certain platforms.
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Originally Posted by johnwayneb
Don’t even ask me to describe the performance of ebook-viewer. Its appalling.
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I guess I'm lucky, I only use epubs in my library and it takes about 3 seconds to open any epub and 5-6 seconds to open any lit file.
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Originally Posted by johnwayneb
I would rather have it launch an external program that is half decent at displaying ebooks (ie: fbreader or anything else).
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Choose whatever viewer you want to open files, calibre does restrict you to its viewer. If you don't want the calibre viewer to open a format change the preferences.
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Originally Posted by johnwayneb
I did some testing and renamed the images folder in my resources folder and the app ran MUCH faster. Who uses svg files for toolbar icons? That's crazy!
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I don't fully understand what you did, but if it helped you that's great! It may also be a clue to what, on your system, is causing these abnormal delays.
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Originally Posted by johnwayneb
I suspect the tool needs to undergo a serious optimization pass as up until now its performance has been rather unacceptable.
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Calibre, as with all programs, can always use some tweaking. Recently there have been massive improvements in the speed between the GUI and the database.
What you're experiencing though is highly abnormal and since you are most likely still in the minority with so many cpu cores there is the possibility that something in the underlying code reacts bad with so many cores. You might want to go to Preferences - Advance and adjust / throttle back the settings at the top (see attached).
Also the original poster of this thread
solved his problem by defragging his drive. I've seen backups where I work go from 4-5 hours to 2 hours after a defrag.
I hope the trouble you're having can be resolved, because some day I'll want a more powerful machine too.