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Old 09-13-2011, 02:59 AM   #1
DoctorOhh
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Reconverted Entire Library

Because of my older eyes, I use larger fonts on my reader. Large fonts plus fully justified text is ugly. So I chose to take the time tonight to do a epub to epub conversion of my entire library. I added left justify and changed the top and bottom paragraph margins from .5em to .3em.

First, in calibre, I changed the number of processes able to run to take advantage of the new machine I just setup at work. I ended up with 8 conversions running at any time. Next I exited Dropbox, on rare occasions Dropbox seems to get in the way of a lot of reading/writing. So to be safe I exited Dropbox for the duration of the conversions.

I did the conversion in batches.

100 at first to see if my settings were correct.
900 Some more spot checking.
1000
2031
5055 This batch took exactly 2 hours.

When I finished I had 8 books that would not convert this time even though they had converted fine in the past. 1 book was corrupted beyond salvage and the other 7 all had the same UnicodeDecodeError. The error pointed to a themedata file left over from the books beginning as a Word document. I used tweak Epub to open each file and delete the offending file and converted these 7 like I had the rest. The 1 corrupted file I retrieved from an external drive and converted that to my liking too.

Now let's see how long it takes Dropbox to upload 9000+ new files. Fortunately my upload speed here at work is better than that at home (where my home machine is busy downloading the new updates.)

Kovid, thanks for a great program, it was fun to see all the cores of the cpu working their butts off.

Last edited by DoctorOhh; 09-13-2011 at 03:02 AM.
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Old 09-13-2011, 03:51 AM   #2
speakingtohe
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Just curious: Do you have the original_ file tweak on? If so did your library double in size?
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Old 09-13-2011, 04:11 AM   #3
DoctorOhh
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Quote:
Originally Posted by speakingtohe View Post
Just curious: Do you have the original_ file tweak on? If so did your library double in size?
Helen
No, I turned that off the day it was implemented.

Thanks for mentioning it, even though I am at the maximum free size of 10.25 gigs having that turned on under these circumstances definitely would have busted my Dropbox.
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Old 09-13-2011, 11:35 AM   #4
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Yeah about the only times all 8 cores on my machine are really exercised is when I am running a bulk convert in calibre, or compiling software
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Old 09-13-2011, 12:52 PM   #5
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Now I want 8 cores

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Old 09-13-2011, 01:17 PM   #6
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I feel left out with my P4 with 1 core (hyper-threaded)
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