Preparing book for first read

LordP · Today, 09:54 AM

I have this issue from time to time, and I'm a bit confused as to where I should find an answer.

I found some websites and a couple of threads here dealing with this problem, but I think my problem is a bit different.

In this post: https://www.mobileread.com/forums/sh...d.php?t=357110
Solo1959 has the problem every time.

It's a bit different for me. I can open several epubs, one after the other - no problem. Then one epub will take a bit over a minute, and the next time that same epub takes no time at all.

I can open an epub quickly several times, and then, for whatever reason, that same epub will be very slow to open.

I'm on Windows 11 Pro. i9-13900K, with 64 GB of RAM - my system is not underpowered.

Any ideas?

BetterRed · Today, 04:39 PM

Calibre caches recently read books in the user %appdata% folder. If that resides on an SSD then it's competing for what is probably a limited resource, as a consequence cached data has to be flushed.

If you have a hard disk, try relocating calibre's cache via the CALIBRE_CACHE_DIRECTORY Environment variable

BR

LordP · Today, 07:16 PM

"Calibre caches recently read books in the user %appdata% folder. If that resides on an SSD then it's competing for what is probably a limited resource, as a consequence cached data has to be flushed."

I'm not 100% clear on what you mean, but I have to ask...do you think it would take more than a minute to flush cached data?

The main calibre program starts almost instantly. When in the main program, all books open instantly.

So, I think there must be a difference between the main program and the viewer.

Am I wrong?

Today, 09:54 AM	#1
LordP Addict Posts: 203 Karma: 1341124 Join Date: Aug 2010 Device: Kindle 3	Preparing book for first read I have this issue from time to time, and I'm a bit confused as to where I should find an answer. I found some websites and a couple of threads here dealing with this problem, but I think my problem is a bit different. In this post: https://www.mobileread.com/forums/sh...d.php?t=357110 Solo1959 has the problem every time. It's a bit different for me. I can open several epubs, one after the other - no problem. Then one epub will take a bit over a minute, and the next time that same epub takes no time at all. I can open an epub quickly several times, and then, for whatever reason, that same epub will be very slow to open. I'm on Windows 11 Pro. i9-13900K, with 64 GB of RAM - my system is not underpowered. Any ideas?

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Today, 04:39 PM	#2
BetterRed null operator (he/him) Posts: 22,020 Karma: 30277294 Join Date: Mar 2012 Location: Sydney Australia Device: none	Calibre caches recently read books in the user %appdata% folder. If that resides on an SSD then it's competing for what is probably a limited resource, as a consequence cached data has to be flushed. If you have a hard disk, try relocating calibre's cache via the CALIBRE_CACHE_DIRECTORY Environment variable BR

Today, 07:16 PM	#3
LordP Addict Posts: 203 Karma: 1341124 Join Date: Aug 2010 Device: Kindle 3	"Calibre caches recently read books in the user %appdata% folder. If that resides on an SSD then it's competing for what is probably a limited resource, as a consequence cached data has to be flushed." I'm not 100% clear on what you mean, but I have to ask...do you think it would take more than a minute to flush cached data? The main calibre program starts almost instantly. When in the main program, all books open instantly. So, I think there must be a difference between the main program and the viewer. Am I wrong?