Very slow to startup

Valkrider · 03-15-2021, 11:26 AM

I am running Calibre on an iMac running Mojave with 24gB of ram.

Calibre takes anywhere from between 3 and 5 minutes to start up. Once it has started all is fine. Is this normal I don't remember it taking so long to load in the past?

kovidgoyal · 03-15-2021, 11:36 AM

Depends on the number of books. For a few thousad books it normally takes under 2 seconds to start.

Valkrider · 03-15-2021, 11:51 AM

Only 9000 books. I have just reverted to v5.12 it is a little quicker but not much.

JSWolf · 03-15-2021, 12:24 PM

You should do a Check Library to compress the database and remove unused entries in the database. That can speed things up.

BetterRed · 03-15-2021, 04:48 PM

@Valkrider - IIRC: custom columns that use file system related template functions such as formats_modtimes, formats_paths, formats_sizes etc can slow things down.

Also try running calibre with the --ignore-plugins option, see Command Line Interface

BR

chaley · 03-15-2021, 06:22 PM

Quote:

Originally Posted by BetterRed

@Valkrider - IIRC: custom columns that use file system related template functions such as formats_modtimes, formats_paths, formats_sizes etc can slow things down.

These can slow calibre down in general, not just at startup.

Valkrider · 03-16-2021, 03:01 AM

Quote:

Originally Posted by JSWolf

You should do a Check Library to compress the database and remove unused entries in the database. That can speed things up.

I couldn't find this option but with more searching I found it. Let's hope it helps.

Thanks for the suggestion

Valkrider · 03-16-2021, 03:02 AM

Quote:

Originally Posted by BetterRed

@Valkrider - IIRC: custom columns that use file system related template functions such as formats_modtimes, formats_paths, formats_sizes etc can slow things down.

Also try running calibre with the --ignore-plugins option, see Command Line Interface

BR

Thanks I don't have any custom columns.

Valkrider · 03-17-2021, 02:38 AM

My thanks to @JSWolf I ran that check and I had loads of unknown file types in the library and so removed them all (with the Calibre option) now Calibre starts in a few seconds instead of a few minutes.

JSWolf · 03-17-2021, 07:34 AM

Quote:

Originally Posted by Valkrider

My thanks to @JSWolf I ran that check and I had loads of unknown file types in the library and so removed them all (with the Calibre option) now Calibre starts in a few seconds instead of a few minutes.

You are very welcome. Happy to help. Glad your Calibre is working as it should.

03-15-2021, 11:26 AM	#1
Valkrider Addict Posts: 316 Karma: 1250000 Join Date: Jan 2011 Location: UK Device: Kobo Libra, iPadAir2, PRS600, iPhone 6, iPod, Palm TX	Very slow to startup I am running Calibre on an iMac running Mojave with 24gB of ram. Calibre takes anywhere from between 3 and 5 minutes to start up. Once it has started all is fine. Is this normal I don't remember it taking so long to load in the past?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Calibre slow startup	ericmjones	Calibre	14	03-13-2015 03:53 AM
Startup of calibre veeeeeery slow (>3 min)	drmaxx	Calibre	15	11-09-2013 04:50 PM
Aura HD Aura HD VERY slow startup with microSD inserted	Major General	Kobo Reader	31	09-13-2013 03:08 AM
Calibre startup very slow	manawydan	Calibre	3	12-27-2012 03:49 PM
Firmware Update New Firmware, Slow Startup	mdibella	Amazon Kindle	1	12-03-2009 09:52 AM

03-15-2021, 11:36 AM	#2
kovidgoyal creator of calibre Posts: 45,373 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Depends on the number of books. For a few thousad books it normally takes under 2 seconds to start.

03-15-2021, 11:51 AM	#3
Valkrider Addict Posts: 316 Karma: 1250000 Join Date: Jan 2011 Location: UK Device: Kobo Libra, iPadAir2, PRS600, iPhone 6, iPod, Palm TX	Only 9000 books. I have just reverted to v5.12 it is a little quicker but not much.

03-15-2021, 12:24 PM	#4
JSWolf Resident Curmudgeon Posts: 79,792 Karma: 146391129 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	You should do a Check Library to compress the database and remove unused entries in the database. That can speed things up.

03-15-2021, 04:48 PM	#5
BetterRed null operator (he/him) Posts: 21,740 Karma: 30237526 Join Date: Mar 2012 Location: Sydney Australia Device: none	@Valkrider - IIRC: custom columns that use file system related template functions such as formats_modtimes, formats_paths, formats_sizes etc can slow things down. Also try running calibre with the --ignore-plugins option, see Command Line Interface BR

03-17-2021, 02:38 AM	#9
Valkrider Addict Posts: 316 Karma: 1250000 Join Date: Jan 2011 Location: UK Device: Kobo Libra, iPadAir2, PRS600, iPhone 6, iPod, Palm TX	My thanks to @JSWolf I ran that check and I had loads of unknown file types in the library and so removed them all (with the Calibre option) now Calibre starts in a few seconds instead of a few minutes.

Advert

Advert