Epub to Mobi loop???

leecole · 04-02-2011, 03:03 PM

I have "The Purpose Driven Life: What on Earth Am I Here For?" by Rick Warren in the Epub format. I attempt to convert it to Mobi, so I can read it on my Kindle, but the conversion never ends. It gets to 47% and never progresses ant further. Any suggestions?

Manichean · 04-02-2011, 03:27 PM

Do you get any error messages? If not, let it continue. If there is no error message, Calibre is still working on the conversion- problematic files have been known to take a few hours sometimes.

DoctorOhh · 04-02-2011, 07:41 PM

Quote:

Originally Posted by leecole

I attempt to convert it to Mobi, so I can read it on my Kindle, but the conversion never ends. It gets to 47% and never progresses ant further. Any suggestions?

Never is a absolute that doesn't apply in this case.

Hopefully you took Manichean's advice and let it continue the conversion. If you don't get a error returned then it is still processing the conversion. It is not in a loop. You can open the job details for the book (lower right) and view the log as it goes.

leecole · 04-08-2011, 07:52 AM

Quote:

Originally Posted by dwanthny

Never is a absolute that doesn't apply in this case.

Hopefully you took Manichean's advice and let it continue the conversion. If you don't get a error returned then it is still processing the conversion. It is not in a loop. You can open the job details for the book (lower right) and view the log as it goes.

It reaches 47% after about 30 min. Six hrs later, it is still at 47%. Since the conversion process brings my system to it's knees (100% cpu) I haven't been willing to let it run any longer. I was hoping someone would have some clue as to maybe change a option that may help.
Thanks...

Manichean · 04-08-2011, 08:26 AM

Depending on the quality of the input file, conversions can take a really long time. The longest conversion I've had running was about 24 hours. Your call.

DoctorOhh · 04-08-2011, 08:07 PM

Quote:

Originally Posted by leecole

Since the conversion process brings my system to it's knees (100% cpu) I haven't been willing to let it run any longer. I was hoping someone would have some clue as to maybe change a option that may help.

Go to preferences - behavior and change Job priority from Normal to Low and your computer should remain responsive during the conversion.

leecole · 04-15-2011, 07:56 AM

Walt's suggestion: Go to preferences - behavior and change Job priority from Normal to Low and your computer should remain responsive during the conversion

I had already done this, but that doesm't ensure system reposiveness, Windows XP's task manager itself doesn't get control until a task does I/O or executes a WAIT instruction. Believe me, on my system, conversion still brings my system to it's knees, even with calibre-parrall running at low priority. Yhw real solution, of course, would be to purchase a newer system, but I am retired trying to make it on a fixed income, so the option that I will go with, is read this book on Calibre instead of my Kindle.
Thanks for the suggestions.

DoctorOhh · 04-15-2011, 08:24 AM

Quote:

Originally Posted by leecole

I had already done this, but that doesm't ensure system reposiveness,

True enough, setting low priority works great when you have more than one core. I guess running the jobs while you sleep is the other alternative.

theducks · 04-15-2011, 11:46 AM

If you are doing nothing else,
Low priority should make little difference in the processing times.

leecole · 04-22-2011, 08:14 AM

TheDubks - If you are doing nothing else,
Low priority should make little difference in the processing times
In Windows XP, unless you are using a program that gains control by a hardware interrupt, it (whatever it's priority) will NOT wrest control away from a running task until that task does I/O (the I/O routine does a wait) or your program itself issues a wait. I have several programs attempting to run (all at a higher priority than caibre-parrell) but until calibre-parell does I/O none of them will gain control. If a program is examining data and/or moving data around in memory, it will keep control.

It is a fact that calibre brings my system to a virtual halt when it converts a book. I have In Preferences-Behavior-Job Priority = Low. I am just asking if there is something other than that that might make a difference.

DoctorOhh · 04-22-2011, 08:38 AM

Quote:

Originally Posted by leecole

It is a fact that calibre brings my system to a virtual halt when it converts a book. I have In Preferences-Behavior-Job Priority = Low. I am just asking if there is something other than that that might make a difference.

If you have a single core system, as I guessed in post 8, then there is nothing you can do except run it while you sleep.

itimpi · 04-22-2011, 08:57 AM

I have a single-core system, and as long as I run the calibre-parallel at Low priority my system hardly notices that a conversion is running. I am running windows 7 Pro as the OS rather than XP, so I guess that might make a difference.

I guess another variable might be RAM - if that got low it could push the system into excessive paging. I have 2GB on the system in question, so that is far more than Calibre ever wants to use.

DoctorOhh · 04-22-2011, 09:04 AM

Quote:

Originally Posted by itimpi

I have a single-core system, and as long as I run the calibre-parallel at Low priority my system hardly notices that a conversion is running. I am running windows 7 Pro as the OS rather than XP, so I guess that might make a difference.

That was my experience after switching to low priority too. I have a dual core, Windows XP with 3.5GB and needed to change to low priority for my system to remain responsive. Windows 7 might be the key to your success.

Quote:

Originally Posted by itimpi

I guess another variable might be RAM - if that got low it could push the system into excessive paging. I have 2GB on the system in question, so that is far more than Calibre ever wants to use.

This too is a possibility.

Good info.

theducks · 04-22-2011, 10:35 AM

My system is similar to Walt's. Just not as much RAM (1.5G).

Taming your A/V (no real time: calibre files and Library.

Scan BEFORE adding.) makes a huge difference.

itimpi · 04-22-2011, 10:48 AM

Quote:

Originally Posted by theducks

Taming your A/V (no real time: calibre files and Library.

Scan BEFORE adding.) makes a huge difference.

Good point - I have both my Calibre install folder, and my Calibre library folders set to be exempt from virus scanning.

04-02-2011, 03:03 PM	#1
leecole Lee Cole Posts: 12 Karma: 10 Join Date: Jan 2011 Location: Cary, NC Device: Kindle Fire,Kindle 2, Kindle 3, Ipod Touch	Epub to Mobi loop??? I have "The Purpose Driven Life: What on Earth Am I Here For?" by Rick Warren in the Epub format. I attempt to convert it to Mobi, so I can read it on my Kindle, but the conversion never ends. It gets to 47% and never progresses ant further. Any suggestions?

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04-02-2011, 03:27 PM	#2
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Do you get any error messages? If not, let it continue. If there is no error message, Calibre is still working on the conversion- problematic files have been known to take a few hours sometimes.

04-08-2011, 08:26 AM	#5
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Depending on the quality of the input file, conversions can take a really long time. The longest conversion I've had running was about 24 hours. Your call.

04-15-2011, 07:56 AM	#7
leecole Lee Cole Posts: 12 Karma: 10 Join Date: Jan 2011 Location: Cary, NC Device: Kindle Fire,Kindle 2, Kindle 3, Ipod Touch	Walt's suggestion: Go to preferences - behavior and change Job priority from Normal to Low and your computer should remain responsive during the conversion I had already done this, but that doesm't ensure system reposiveness, Windows XP's task manager itself doesn't get control until a task does I/O or executes a WAIT instruction. Believe me, on my system, conversion still brings my system to it's knees, even with calibre-parrall running at low priority. Yhw real solution, of course, would be to purchase a newer system, but I am retired trying to make it on a fixed income, so the option that I will go with, is read this book on Calibre instead of my Kindle. Thanks for the suggestions.

04-15-2011, 11:46 AM	#9
theducks Well trained by Cats Posts: 30,889 Karma: 59840450 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	If you are doing nothing else, Low priority should make little difference in the processing times.

04-22-2011, 08:14 AM	#10
leecole Lee Cole Posts: 12 Karma: 10 Join Date: Jan 2011 Location: Cary, NC Device: Kindle Fire,Kindle 2, Kindle 3, Ipod Touch	TheDubks - If you are doing nothing else, Low priority should make little difference in the processing times In Windows XP, unless you are using a program that gains control by a hardware interrupt, it (whatever it's priority) will NOT wrest control away from a running task until that task does I/O (the I/O routine does a wait) or your program itself issues a wait. I have several programs attempting to run (all at a higher priority than caibre-parrell) but until calibre-parell does I/O none of them will gain control. If a program is examining data and/or moving data around in memory, it will keep control. It is a fact that calibre brings my system to a virtual halt when it converts a book. I have In Preferences-Behavior-Job Priority = Low. I am just asking if there is something other than that that might make a difference.

04-22-2011, 08:57 AM	#12
itimpi Wizard Posts: 4,553 Karma: 950151 Join Date: Nov 2008 Device: Sony PRS-950, iphone/ipad (Marvin/iBooks/QuickReader)	I have a single-core system, and as long as I run the calibre-parallel at Low priority my system hardly notices that a conversion is running. I am running windows 7 Pro as the OS rather than XP, so I guess that might make a difference. I guess another variable might be RAM - if that got low it could push the system into excessive paging. I have 2GB on the system in question, so that is far more than Calibre ever wants to use.

04-22-2011, 10:35 AM	#14
theducks Well trained by Cats Posts: 30,889 Karma: 59840450 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	My system is similar to Walt's. Just not as much RAM (1.5G). Taming your A/V (no real time: calibre files and Library. Scan BEFORE adding.) makes a huge difference.