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Old 04-09-2013, 12:07 AM   #4
DNSB
Bibliophagist
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Posts: 35,498
Karma: 145557716
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Forma, Clara HD, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by RZetlin View Post
I have a 32 GB class 4 Kingston Micro SD Card for my Kobo Glo.

Using caibre, I have side loaded over 50 epubs onto the Micro SD Card.

When I view the books, it takes about 3 to 5 seconds per book for the book covers to render. (Kobo shows 6 books per page, so it takes about 50 seconds to render one page of books)

It seems to load a little faster when I save the epub on the main device.

I don't know the slow rendering of book cover pages is due to the Micro SD or is it the Kobo software that cannot render the book cover pages fast enough.
What I've found is that the small block random read/write speed of the card seems to make more difference than the class which seems to be predicated on the large block read/write speeds. There are several sources for information on those parameters, check https://docs.google.com/spreadsheet/...E#gid=0http:// for one database of test results.

What it meant for me is that a 8GB Class 4 Sandisk gives me faster cover loading and book opening speeds than a 8GB Class 10 Patriot. Yes, the Patriot blows the Sandisk away on large blocks but the Sandisk is about 4x read and 10x write faster on small blocks using Crystal DiskMark and a Sandisk uSD/USB adapter.

Regards,
David
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