Thread: Glo Glo help please!
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Old 03-10-2013, 01:40 AM   #38
davidfor
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Posts: 24,905
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Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by TechniSol View Post
I think you're coming back to issues like how storing books on external SDHC cause the reader to have to regenerate covers each time. You may also be having problems with bad epubs, or being limited by SDHC performance that may not be what it seems according to the published specs. A number of sources point to how class 2 SDHC cards may outperform class 10 devices by a factor of 50-100 times for short random writes. Think cover generation.
The performance timewyrm seems to be talking about is getting to the shelf list. That shouldn't be looking at the books at all and only reading the database. How long that takes to display seems to depend on the number of shelves and the number of books on them.
[quote]
There may also just be firmware issues that will get resolved later. Have you transferred all the books from your SDHC onto the pc hard drive? If so, why not try reformatting the SDHC to clean it up, setting calibre's plug-in for Kobo to copy covers to the SDHC in black and white to prevent the need to generate them, and then copying a small number of titles/shelves over at a time and see if you can find a point at which it slows down, or better yet, first try only moving content to the internal memory and see if performance is better without the external card installed.
/QUOTE]

The calibre driver doesn't copy covers to the device if the books are on the SD card. The recent firmware doesn't store the cover images or read them.
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