09-19-2018, 10:11 PM | #16 |
creator of calibre
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The thumbnails as separate files are uploaded in /system/thumbnails see the upload_kindle_thumbnail() function in kindle/driver.py
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09-19-2018, 10:14 PM | #17 |
creator of calibre
Posts: 43,850
Karma: 22666666
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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Though I have to say that even writing a couple of hundred MB over a USB connection should not take more than a few seconds. For example, even the ancient USB 2 standard supports data transfer at ~30 MB/s https://en.wikipedia.org/wiki/USB#USB_2.0
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09-23-2018, 07:47 AM | #18 | |
Age improves with wine.
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Join Date: Nov 2014
Device: Kindle Oasis, Kobo Libra II
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Quote:
1) convert to AZW3 -- about 5 mins average 2) upload -- 1 or 2 seconds 3) update metadata -- typically 3 mins It's much faster if I convert manually and then upload, because the uploads are treated as a single job -- even when there are hundreds of books involved, the upload takes a few minutes, and this spawns a single "update metadata" job that takes about 10 mins or so. I've no idea how the upload system works, but it would be nice if when I select several books to upload, it batched the uploads into a single job after conversion the way I do if I do it manually. Or deferred the metadata update until all the pending uploads have completed and then processed all the updates at once. Is anything like this possible? Last edited by Phssthpok; 09-23-2018 at 07:52 AM. |
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