64-Bit

country0129 · 08-31-2012, 04:21 PM

Are there any plans to have calibre in a 64-bit version? The software will only use about 3.4 G of RAM when rendering different functions on the otherwise EXCELLENT software. I have never had problems with this software. It is very user friendly with its GUI, and the plethora of features is rich with options to manage my E-book library. And I have over 10,000 books in that library.

I have no gripes but a wish: 64-bit program to utilize more powerful systems that are inundating the marketplace and users' homes?

Would anyone else want this?

goldshirt9 · 08-31-2012, 04:23 PM

no, dont mind either 32 or 64 bit.

country0129 · 08-31-2012, 04:34 PM

It's just that the 64-bit would use a lot more RAM and make the rendering/conversion process much faster.

BetterRed · 08-31-2012, 06:27 PM

Quote:

Originally Posted by country0129

It's just that the 64-bit would use a lot more RAM and make the rendering/conversion process much faster.

If there was a 64mm Calibre, I'd give it a shot,
But I wont die in a ditch if there's not.

BR

JSWolf · 08-31-2012, 06:36 PM

A 64-bit Calibre would actually break things. For example, the DRM removal plugins require 32-bit and would break under 64-bit. So making Calibre 64-bit would be a rather bad thing.

kovidgoyal · 08-31-2012, 11:39 PM

64bit calibre is available for linux and os x, I have no plans to make a 64 bit windows version.

Adoby · 09-01-2012, 12:57 AM

One way to significantly speed up many (some?) functions in Calibre is to put the temp folder on RAM, if you have plenty of memory in your computer.

In Linux (I use Ubuntu) this is easy by using tempfs. To do this I added this line to the file /etc/fstab

Code:

tmpfs /tmp tmpfs nodev,nosuid 0 0

This will use up to half of the available RAM and if needed also the swap partitions for the folder /tmp. As before, other unused memory will be used as disc cache. To have /tmp on tempfs may also good if you have a SSD, since it will reduce the number of writes to the SSD, increasing both performance and lifetime of the SSD.

Google /tmp fstab tmpfs for more info. Add the name of your Linux flavor.

This may also significantly speed up other programs that use /tmp a lot.

I believe something similar can be done in Windows? Then you can still take advantage of your 64 bit OS and extra memory, while running 32 bit Calibre.

08-31-2012, 04:21 PM	#1
country0129 Country0129 Posts: 55 Karma: 506306 Join Date: Apr 2012 Location: Louisiana Device: Kindle, Kindle Fire, PC	64-Bit Are there any plans to have calibre in a 64-bit version? The software will only use about 3.4 G of RAM when rendering different functions on the otherwise EXCELLENT software. I have never had problems with this software. It is very user friendly with its GUI, and the plethora of features is rich with options to manage my E-book library. And I have over 10,000 books in that library. I have no gripes but a wish: 64-bit program to utilize more powerful systems that are inundating the marketplace and users' homes? Would anyone else want this?

08-31-2012, 04:34 PM	#3
country0129 Country0129 Posts: 55 Karma: 506306 Join Date: Apr 2012 Location: Louisiana Device: Kindle, Kindle Fire, PC	64-Bit It's just that the 64-bit would use a lot more RAM and make the rendering/conversion process much faster.

09-01-2012, 12:57 AM	#7
Adoby Handy Elephant Posts: 1,736 Karma: 26785668 Join Date: Dec 2009 Location: Southern Sweden, far out in the quiet woods Device: Thinkpad E595, Ubuntu Mate, Huawei Mediapad 5, Bouye Likebook Plus	One way to significantly speed up many (some?) functions in Calibre is to put the temp folder on RAM, if you have plenty of memory in your computer. In Linux (I use Ubuntu) this is easy by using tempfs. To do this I added this line to the file /etc/fstab Code: tmpfs /tmp tmpfs nodev,nosuid 0 0 This will use up to half of the available RAM and if needed also the swap partitions for the folder /tmp. As before, other unused memory will be used as disc cache. To have /tmp on tempfs may also good if you have a SSD, since it will reduce the number of writes to the SSD, increasing both performance and lifetime of the SSD. Google /tmp fstab tmpfs for more info. Add the name of your Linux flavor. This may also significantly speed up other programs that use /tmp a lot. I believe something similar can be done in Windows? Then you can still take advantage of your 64 bit OS and extra memory, while running 32 bit Calibre.

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08-31-2012, 04:23 PM	#2
goldshirt9 Nameless Being	no, dont mind either 32 or 64 bit.

08-31-2012, 06:36 PM	#5
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	A 64-bit Calibre would actually break things. For example, the DRM removal plugins require 32-bit and would break under 64-bit. So making Calibre 64-bit would be a rather bad thing.

08-31-2012, 11:39 PM	#6
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	64bit calibre is available for linux and os x, I have no plans to make a 64 bit windows version.

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