Calibre v7.33 Dramatically Slower

chunga668 · 12-14-2010, 07:49 AM

I'm surprised I couldn't find anyone else with this problem.
Pardon me if this was posted already.

I find v7.33 dramatically slower than the previous version.
Both in adding new books (I usually drag & drop) and from editing the metadata (hotkey 'E').
I haven't made any changes to my preferences.
Just upgraded to the new version in the standard way.
Is there something I'm missing?

I'm on Vista x64.

I love Calibre so I hope you don't take this as a complaint.
Please keep up the great work!
-Chunga668

Manichean · 12-14-2010, 07:56 AM

I haven't noticed anything in that direction. Did anything else on your system change (AV software, hardware, ...) or was the Calibre update the only thing changed?

chunga668 · 12-14-2010, 08:00 AM

No other system changes since the last update that I can think of.
I'm generally pretty tech savvy and initially assumed it would resolve itself but it's continuing to be a problem.
I upgraded from the last most recent (7.32?) version and didn't skip a version.

Thanks in advance for the assist!

Manichean · 12-14-2010, 08:15 AM

Do you have any data on how long it took to do certain operations vs. how long it takes now?

chunga668 · 12-14-2010, 08:46 AM

Hmm, I'd say for an average ebook the previous version would add/save it to the directory/DB in only a few seconds.
The speed improvements from a few version previous were noticeable to me.

With the new version the after a drag & drop, the "adding" dialog goes away in about 5 seconds and then I get a "wait" cursor for about 30 seconds before the book is visible in the list.
It's about the same length of time when editing the meta data as far as I can tell.

Thanks again!

chunga668 · 12-14-2010, 09:03 AM

I just checked the Process information and while adding a book Calibre is using 23% of CPU and 645MB of memory!!!
The calibre-parallel.exe worker processes are 0% & 20MB each.
Hope this helps.

scotmad · 12-14-2010, 09:35 AM

I confirm, Calibre is running considerably slower since this update. I recon that the wait, after adding a book is about double that from the previous update.

kovidgoyal · 12-14-2010, 10:53 AM

There is a memory leak in the edit metadata dialog introduced in 0.7.32 that is likely causing this (will be fixed for next release).

chunga668 · 12-14-2010, 07:51 PM

Sorry if this was a known problem and thanks for the update.
Keep up the great work! I "Heart" Calibre!

kovidgoyal · 12-14-2010, 07:57 PM

No problem, let me know if 0.7.34 which will be released Friday fixes it for you.

Worldwalker · 12-15-2010, 12:50 AM

And this is why calibre rocks. How many other programs have the author saying "It'll be fixed Friday"? The words "working as intended" and "next year's version" come to mind.

Lady Fitzgerald · 12-15-2010, 01:36 AM

Quote:

Originally Posted by Worldwalker

And this is why calibre rocks. How many other programs have the author saying "It'll be fixed Friday"? The words "working as intended" and "next year's version" come to mind.

kiwipippa · 12-15-2010, 01:44 AM

Quote:

Originally Posted by Lady Fitzgerald

And from me. Makes a refreshing change from the thread a bit further up. I have never seen another developer posting so quickly and releasing so regularly - always willing to help out. Thanks Kovid and the rest of the calibre team - keep up the great work

scotmad · 12-15-2010, 11:52 AM

I am really impressed by the speed of response by the developer and will be making a donation right now to show my thanks.
Keep up the good work.

ldolse · 12-15-2010, 01:22 PM

Well, hate to rain on all the kudos, but has this fix been checked in yet? I'm running from source and I'm seeing slowdowns over time.

Particularly with adding books. Freshly launched, everything runs great, really fast. If I come back to it 8-12 hours later I notice a significant slowdown.

Here are some examples:

Code:

Added DropCaps to db in: 0.168881893158 seconds
Job: 11 Read metadata (0 of 1) finished
Read metadata (0 of 1)
	MOBI header version = 6, length = 232
	Extra Data Flags = 7
	This book is not encrypted.

Added A Study in Scarlet to db in: 2.45061302185 seconds
get_metadata cache: 2440 calls, 93.81% misses
pc-264:~ home$ calibre-debug -g
Starting up...
Started up in 15.5467059612
Added A Study in Scarlet to db in: 0.0322260856628 seconds
Job: 1 Read metadata (0 of 1) finished
Read metadata (0 of 1)
	MOBI header version = 6, length = 232
	Extra Data Flags = 7
	This book is not encrypted.

'Dropcaps' was added shortly after a re-launch of the program.
The first 'A study in scarlet' was added to the same Calibre instance 12-13 hours later.
The second 'A Study in Scarlet' instance was added just now, immediately after re-starting Calibre.

I see there is a bug open for something along these lines on the bug tracker, can add more info there if needed.

12-14-2010, 07:49 AM	#1
chunga668 Junior Member Posts: 9 Karma: 10 Join Date: May 2010 Device: Nook	Calibre v7.33 Dramatically Slower I'm surprised I couldn't find anyone else with this problem. Pardon me if this was posted already. I find v7.33 dramatically slower than the previous version. Both in adding new books (I usually drag & drop) and from editing the metadata (hotkey 'E'). I haven't made any changes to my preferences. Just upgraded to the new version in the standard way. Is there something I'm missing? I'm on Vista x64. I love Calibre so I hope you don't take this as a complaint. Please keep up the great work! -Chunga668

12-15-2010, 01:22 PM	#15
ldolse Wizard Posts: 1,337 Karma: 123455 Join Date: Apr 2009 Location: Malaysia Device: PRS-650, iPhone	Well, hate to rain on all the kudos, but has this fix been checked in yet? I'm running from source and I'm seeing slowdowns over time. Particularly with adding books. Freshly launched, everything runs great, really fast. If I come back to it 8-12 hours later I notice a significant slowdown. Here are some examples: Code: Added DropCaps to db in: 0.168881893158 seconds Job: 11 Read metadata (0 of 1) finished Read metadata (0 of 1) MOBI header version = 6, length = 232 Extra Data Flags = 7 This book is not encrypted. Added A Study in Scarlet to db in: 2.45061302185 seconds get_metadata cache: 2440 calls, 93.81% misses pc-264:~ home$ calibre-debug -g Starting up... Started up in 15.5467059612 Added A Study in Scarlet to db in: 0.0322260856628 seconds Job: 1 Read metadata (0 of 1) finished Read metadata (0 of 1) MOBI header version = 6, length = 232 Extra Data Flags = 7 This book is not encrypted. 'Dropcaps' was added shortly after a re-launch of the program. The first 'A study in scarlet' was added to the same Calibre instance 12-13 hours later. The second 'A Study in Scarlet' instance was added just now, immediately after re-starting Calibre. I see there is a bug open for something along these lines on the bug tracker, can add more info there if needed. Last edited by ldolse; 12-15-2010 at 01:34 PM.

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12-14-2010, 07:56 AM	#2
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	I haven't noticed anything in that direction. Did anything else on your system change (AV software, hardware, ...) or was the Calibre update the only thing changed?

12-14-2010, 08:00 AM	#3
chunga668 Junior Member Posts: 9 Karma: 10 Join Date: May 2010 Device: Nook	No other system changes since the last update that I can think of. I'm generally pretty tech savvy and initially assumed it would resolve itself but it's continuing to be a problem. I upgraded from the last most recent (7.32?) version and didn't skip a version. Thanks in advance for the assist!

12-14-2010, 08:15 AM	#4
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Do you have any data on how long it took to do certain operations vs. how long it takes now?

12-14-2010, 08:46 AM	#5
chunga668 Junior Member Posts: 9 Karma: 10 Join Date: May 2010 Device: Nook	Hmm, I'd say for an average ebook the previous version would add/save it to the directory/DB in only a few seconds. The speed improvements from a few version previous were noticeable to me. With the new version the after a drag & drop, the "adding" dialog goes away in about 5 seconds and then I get a "wait" cursor for about 30 seconds before the book is visible in the list. It's about the same length of time when editing the meta data as far as I can tell. Thanks again!

12-14-2010, 09:03 AM	#6
chunga668 Junior Member Posts: 9 Karma: 10 Join Date: May 2010 Device: Nook	I just checked the Process information and while adding a book Calibre is using 23% of CPU and 645MB of memory!!! The calibre-parallel.exe worker processes are 0% & 20MB each. Hope this helps.

12-14-2010, 09:35 AM	#7
scotmad Member Posts: 12 Karma: 218 Join Date: Mar 2010 Location: Scotland Device: BeBook	I confirm, Calibre is running considerably slower since this update. I recon that the wait, after adding a book is about double that from the previous update.

12-14-2010, 10:53 AM	#8
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There is a memory leak in the edit metadata dialog introduced in 0.7.32 that is likely causing this (will be fixed for next release).

12-14-2010, 07:51 PM	#9
chunga668 Junior Member Posts: 9 Karma: 10 Join Date: May 2010 Device: Nook	Sorry if this was a known problem and thanks for the update. Keep up the great work! I "Heart" Calibre!

12-14-2010, 07:57 PM	#10
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No problem, let me know if 0.7.34 which will be released Friday fixes it for you.

12-15-2010, 12:50 AM	#11
Worldwalker Curmudgeon Posts: 3,085 Karma: 722357 Join Date: Feb 2010 Device: PRS-505	And this is why calibre rocks. How many other programs have the author saying "It'll be fixed Friday"? The words "working as intended" and "next year's version" come to mind.

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12-15-2010, 11:52 AM	#14
scotmad Member Posts: 12 Karma: 218 Join Date: Mar 2010 Location: Scotland Device: BeBook	I am really impressed by the speed of response by the developer and will be making a donation right now to show my thanks. Keep up the good work.