Aura HD Odd PDF performance

ottdmk · 02-05-2014, 04:54 PM

So, I got my Aura HD last night (side note: Kudos to Future Shop and Canada Post. Ordered on Sunday, in my hands Tuesday via no-extra-charge shipping? Excellent!) and loaded my Shadowrun PDFs onto my new Kingston 8GB Class 4 SDHC card.

I'm thinking I may have picked the wrong card. I figured for ebooks, Class 4 would work fine. (I also remember seeing somewhere around here that Class 4 might work better in ereaders then Class 10.) But the Shadowrun 5th Ed Handbook is displayed so slowly.

Page turns take seconds (usually 3-10). Now, once the page is displayed, things are *fast*. Zoom is pretty much instant. And the display is, of course, beautiful. But the page turns are painful.

I put the Exalted 5th Ed PDF in main memory to compare. The Exalted PDF is larger, by almost 50%. Much faster page turns.

I suppose the next test will be to take the Shadowrun book off the SD card and put it in main memory to compare...

TechniSol · 02-05-2014, 09:59 PM

I second your thought that the test might be more valid using the same file. Let us know if it turns out to be the card. As for the class four cards being faster the argument is usually made based on the card's abilities to process smaller files more quickly due the card's design and block size. Specifically it would likely be most important to consider when replacing the internal card which handles smaller files as part of the firmware which it holds. Larger files might be faster on a class 10 card being used externally for file storage only.

filmo · 02-06-2014, 09:56 AM

Son has Sony video recorder shoots 1080P to SD card. Manual says only use class 10 SD card. Faster record performance is reason for class 10. SD cards and all data storage fails sooner or later. Always have backups reduces chance of this being big problem. My library is on 2 readers, 2 computers and servers someplace.

ottdmk · 02-07-2014, 12:22 AM

Well, my gaming pdfs are on a removable sd card and are backed up on several computers and the cloud (my drivethrurpg.com account allows multiple downloads.) So I'm good that way.

Turns out the Exalted pdf I tried (the larger one) was on the sd card as well. I moved the Shadowrun to main memory; still slow. I could swear that the Shadowrun PDF moved faster on my Touch. Wish I could compare, but alas I lost the Touch the same day I ordered the Aura.

Interestingly enough, I can speed up things . If I'm zoomed in, "moving" the display immediately after a tap-to-change will render most of the new page almost immediately. Certain tables and the like take longer. Trying to call up the menu seems to help a bit when I'm not zoomed in.

Even still, loving the Aura HD more & more, even after only two days.

EndlessWaves · 02-07-2014, 06:04 AM

If any of those PDFs are freely available I'd be happy to try them on my Aura HD for comparison. I've not tried many gaming PDFs yet, but certainly the 397 page/6.8MB dominions 4 manual has no issues with responsiveness.

02-05-2014, 04:54 PM	#1
ottdmk Wizard Posts: 1,196 Karma: 3765734 Join Date: Feb 2012 Location: Ottawa, Ontario, Canada Device: Kobo Libra 2, Lenovo Tab M10 FHD Plus, Lenovo Tab M8 HD	Odd PDF performance So, I got my Aura HD last night (side note: Kudos to Future Shop and Canada Post. Ordered on Sunday, in my hands Tuesday via no-extra-charge shipping? Excellent!) and loaded my Shadowrun PDFs onto my new Kingston 8GB Class 4 SDHC card. I'm thinking I may have picked the wrong card. I figured for ebooks, Class 4 would work fine. (I also remember seeing somewhere around here that Class 4 might work better in ereaders then Class 10.) But the Shadowrun 5th Ed Handbook is displayed so slowly. Page turns take seconds (usually 3-10). Now, once the page is displayed, things are fast. Zoom is pretty much instant. And the display is, of course, beautiful. But the page turns are painful. I put the Exalted 5th Ed PDF in main memory to compare. The Exalted PDF is larger, by almost 50%. Much faster page turns. I suppose the next test will be to take the Shadowrun book off the SD card and put it in main memory to compare...

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02-05-2014, 09:59 PM	#2
TechniSol GranPohbah-Fezzes r cool! Posts: 1,056 Karma: 3151024 Join Date: Jul 2010 Device: Nook STRs, Kobo Touch, Kobo Glo	I second your thought that the test might be more valid using the same file. Let us know if it turns out to be the card. As for the class four cards being faster the argument is usually made based on the card's abilities to process smaller files more quickly due the card's design and block size. Specifically it would likely be most important to consider when replacing the internal card which handles smaller files as part of the firmware which it holds. Larger files might be faster on a class 10 card being used externally for file storage only.

02-06-2014, 09:56 AM	#3
filmo Wizard Posts: 1,326 Karma: 1077205 Join Date: Jun 2011 Device: Kobo Touch, Sony T1, Kobo Mini	Son has Sony video recorder shoots 1080P to SD card. Manual says only use class 10 SD card. Faster record performance is reason for class 10. SD cards and all data storage fails sooner or later. Always have backups reduces chance of this being big problem. My library is on 2 readers, 2 computers and servers someplace.

02-07-2014, 12:22 AM	#4
ottdmk Wizard Posts: 1,196 Karma: 3765734 Join Date: Feb 2012 Location: Ottawa, Ontario, Canada Device: Kobo Libra 2, Lenovo Tab M10 FHD Plus, Lenovo Tab M8 HD	Well, my gaming pdfs are on a removable sd card and are backed up on several computers and the cloud (my drivethrurpg.com account allows multiple downloads.) So I'm good that way. Turns out the Exalted pdf I tried (the larger one) was on the sd card as well. I moved the Shadowrun to main memory; still slow. I could swear that the Shadowrun PDF moved faster on my Touch. Wish I could compare, but alas I lost the Touch the same day I ordered the Aura. Interestingly enough, I can speed up things . If I'm zoomed in, "moving" the display immediately after a tap-to-change will render most of the new page almost immediately. Certain tables and the like take longer. Trying to call up the menu seems to help a bit when I'm not zoomed in. Even still, loving the Aura HD more & more, even after only two days.

02-07-2014, 06:04 AM	#5
EndlessWaves Zealot Posts: 119 Karma: 38158 Join Date: Jan 2014 Device: Kobo Aura HD	If any of those PDFs are freely available I'd be happy to try them on my Aura HD for comparison. I've not tried many gaming PDFs yet, but certainly the 397 page/6.8MB dominions 4 manual has no issues with responsiveness.

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