Noticeable slowdown for 1000 page + ebooks?

pitolee · 04-23-2007, 03:38 AM

My reader still hasn't been delivered so can't check this...

I've read that extremely long books can cause noticeable page-turn slowdowns (perhaps relating only to pdf files - not sure).

Here's my issue - I'd like to do series of books as one (like HarryT does) but am wondering whether there is a noticeable slowdown in performance/page turn speed with ebooks of more than 1000 pages...

1. lrs file using reader fonts
2. lrs file using embedded fonts
3. lrs file using embedded fonts and 4-6 cover photos...

What is the performance hit (if any) for these scenarios compared, say, to a 300 page ebook?

Are there reader agility issues? memory issues? (Have no idea how it works)

Thanks...

HarryT · 04-23-2007, 04:37 AM

There's certainly no slowdown with long LRFs compared with short ones. I have read that embedded fonts cause severe slowdowns, but have no personal experience of this.

Leaping Gnome · 04-23-2007, 08:10 AM

I've read a few eBooks over 1,000 pages, haven't noticed a difference between them and shorter books.

Alexander Turcic · 04-23-2007, 08:18 AM

I think, like you said pitolee, that this issue is related to PDF files only, and it depends on which tools were used to generate the PDF (some generate more efficient PDF code than others).

dstampe · 04-23-2007, 09:00 AM

PDF slowdown noticeable after ~200 pages, gets worse as you get further into the document. There seemes to be a 1000-page limit after which pages are blank (at least using my set of PDF tools).

LRF and RTF seem fine. Embedded-font LRF is about 2-3x slower.

Alexander Turcic · 04-23-2007, 09:05 AM

Quote:

Originally Posted by dstampe

PDF slowdown noticeable after ~200 pages, gets worse as you get further into the document. There seemes to be a 1000-page limit after which pages are blank (at least using my set of PDF tools).

LRF and RTF seem fine. Embedded-font LRF is about 2-3x slower.

dstampe, what tool did you use to convert your PDFs? For instance, with htmldoc, I notice the same performance problems as you described. When I use Adobe Acrobat, there seems to be no decrease in performance, even with books with more than 1000 pages.

UncleDuke · 04-23-2007, 12:27 PM

i'm the only thing that slows down after a thousand pages

Alexander Turcic · 04-23-2007, 01:15 PM

Quote:

Originally Posted by UncleDuke

i'm the only thing that slows down after a thousand pages

*grin*

kacir · 04-23-2007, 04:26 PM

I see no noticeable slowdown reading 1200 page book in rtf format. Simple rtf. I have just set sans-sherif font size 12.

NatCh · 04-23-2007, 05:25 PM

I've read a number of files in RTF & LRF both that were well above 2000 pages, with no noticeable slowdown.

RWood · 04-23-2007, 06:07 PM

I have not had any problems with RTF, LRF, or PDF formats.

One of the LRF books had over 5,000 pages and had no speed problems at either the start or end.

I created a properly page-sized PDF of 1,800+ pages in Adobe Acrobat and had no slowdown. I repeated it in ABBYY PDF Transformer and again no speed problems.

All of these were done using internal memory.

04-23-2007, 03:38 AM	#1
pitolee Connoisseur Posts: 55 Karma: 23 Join Date: Apr 2007 Device: Sony eReader	Noticeable slowdown for 1000 page + ebooks? My reader still hasn't been delivered so can't check this... I've read that extremely long books can cause noticeable page-turn slowdowns (perhaps relating only to pdf files - not sure). Here's my issue - I'd like to do series of books as one (like HarryT does) but am wondering whether there is a noticeable slowdown in performance/page turn speed with ebooks of more than 1000 pages... 1. lrs file using reader fonts 2. lrs file using embedded fonts 3. lrs file using embedded fonts and 4-6 cover photos... What is the performance hit (if any) for these scenarios compared, say, to a 300 page ebook? Are there reader agility issues? memory issues? (Have no idea how it works) Thanks...

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04-23-2007, 04:37 AM	#2
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383043 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	There's certainly no slowdown with long LRFs compared with short ones. I have read that embedded fonts cause severe slowdowns, but have no personal experience of this.

04-23-2007, 08:10 AM	#3
Leaping Gnome Evangelist Posts: 490 Karma: 1641 Join Date: Oct 2006 Location: Louisville Device: Sony Reader PRS-500	I've read a few eBooks over 1,000 pages, haven't noticed a difference between them and shorter books.

04-23-2007, 08:18 AM	#4
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	I think, like you said pitolee, that this issue is related to PDF files only, and it depends on which tools were used to generate the PDF (some generate more efficient PDF code than others).

04-23-2007, 09:00 AM	#5
dstampe dstampe Posts: 50 Karma: 17 Join Date: Jan 2007 Location: Canada Device: Sony PRS-500	PDF slowdown noticeable after ~200 pages, gets worse as you get further into the document. There seemes to be a 1000-page limit after which pages are blank (at least using my set of PDF tools). LRF and RTF seem fine. Embedded-font LRF is about 2-3x slower.

04-23-2007, 12:27 PM	#7
UncleDuke books & doughnuts Posts: 882 Karma: 37857 Join Date: Jan 2007 Location: usa Device: sony reader, kindle2	i'm the only thing that slows down after a thousand pages

04-23-2007, 04:26 PM	#9
kacir Wizard Posts: 3,450 Karma: 10484861 Join Date: May 2006 Device: PocketBook 360, before it was Sony Reader, cassiopeia A-20	I see no noticeable slowdown reading 1200 page book in rtf format. Simple rtf. I have just set sans-sherif font size 12.

04-23-2007, 05:25 PM	#10
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	I've read a number of files in RTF & LRF both that were well above 2000 pages, with no noticeable slowdown.

04-23-2007, 06:07 PM	#11
RWood Technogeezer Posts: 7,233 Karma: 1601464 Join Date: Nov 2006 Location: Virginia, USA Device: Sony PRS-500	I have not had any problems with RTF, LRF, or PDF formats. One of the LRF books had over 5,000 pages and had no speed problems at either the start or end. I created a properly page-sized PDF of 1,800+ pages in Adobe Acrobat and had no slowdown. I repeated it in ABBYY PDF Transformer and again no speed problems. All of these were done using internal memory.