Annotation performance?

democrite · 01-25-2014, 12:14 AM

Curious how it's going to be. I still use iBooks since Marvin doesn't yet have annotation syncing and vertical scrolling. More and more it seems like I will switch. Besides having hundreds of books, and not easily being able to scroll through them (with an index scrolling), performance is starting to lag.

I'm starting to get into the habit of having, for each epub chapter, possibly hundreds of annotations. Vertical scrolling then really starts to slow down. Hopefully Marvin can do better.

I would imagine that for really decent performance, would a temp file that modifies the html and css be faster an than overlay?

kguil · 01-25-2014, 10:46 PM

Marvin never modifies HTML in ebooks - However, it "flattens" the annotations into HTML (in memory) once an EPUB section is loaded so, say, page flipping performance and reading performance shouldn't be affected. The only place where I can see degradation is when opening a section containing many hundreds of highlights but Marvin is heavily optimised to deal with this too.

You could try the free version of Marvin with a couple of books of your choice, create a bunch of highlights and see how it does.

01-25-2014, 12:14 AM	#1
democrite Evangelist Posts: 425 Karma: 77256 Join Date: Sep 2011 Device: none	Annotation performance? Curious how it's going to be. I still use iBooks since Marvin doesn't yet have annotation syncing and vertical scrolling. More and more it seems like I will switch. Besides having hundreds of books, and not easily being able to scroll through them (with an index scrolling), performance is starting to lag. I'm starting to get into the habit of having, for each epub chapter, possibly hundreds of annotations. Vertical scrolling then really starts to slow down. Hopefully Marvin can do better. I would imagine that for really decent performance, would a temp file that modifies the html and css be faster an than overlay?

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01-25-2014, 10:46 PM	#2
kguil Addict Posts: 1,215 Karma: 1836966 Join Date: Feb 2010 Location: Malta, Europe Device: Marvin for iOS	Marvin never modifies HTML in ebooks - However, it "flattens" the annotations into HTML (in memory) once an EPUB section is loaded so, say, page flipping performance and reading performance shouldn't be affected. The only place where I can see degradation is when opening a section containing many hundreds of highlights but Marvin is heavily optimised to deal with this too. You could try the free version of Marvin with a couple of books of your choice, create a bunch of highlights and see how it does.

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