Calibre + GutenTorrent = Slow

DoctorYof · 09-15-2008, 06:59 PM

Not a complaint or request for help - simply some information.

Having downloaded the 'GutenTorrent' collection and added this to my Calibre library, the program is now handling 12,000+ books.

(This is on a E6600 2.4 GHz Core2Duo machine with 2GB ram running under Vista Ultimate 32-bit and Calibre 0.4.83).

1) Most importantly the program works as intended without any apparent tendency to fall over!

2) Startup without connection to the reader takes a little over 4 1/2 minutes from launch to showing the book list.

3) Adding a new ebook to the library (lrf format, normal novel size) takes ~90 seconds.

4) When adding a book the cursor doesn't change to the 'busy/waiting' cursor (Vista's spinning hoop) until 10 - 15 seconds have elapsed.

5) Searches are fast - e.g. only three or four seconds to pick out 35 books with "oz" in the title or author (including 7 "Oz" books)

6) Reordering the display from 'title' sort to 'author' sort took about 75 seconds.

I now have to decide whether too much choice is too much of a good thing, and if so how best to delete most of my library.

The most obvious issue is start-up. The first couple of times I tried this I (probably wrongly) assumed Calibre had crashed. Now I just read a book while waiting...

kovidgoyal · 09-15-2008, 09:14 PM

Interesting, I've never really tested or optimized calibre for more than a few hundred books. Can you try the the beta (it has substantial improvements in the database layer) and see if the performance improves?

DoctorYof · 09-16-2008, 03:21 PM

I've now tried using 0.4.84b16.

Startup time now 2 minutes (c.f. 4 1/2 mins with 0.4.83).

Time to add a new book to library ~60 seconds (c.f. 90s)

Searches still fast, resort time unchanged at 75 seconds.

Looks like this version would be usable without drawbacks on a more reasonably sized large library (say a thousand titles or so!).

No other problems with the beta at first experience - no plans to reinstall the stable release yet!

kovidgoyal · 09-16-2008, 05:28 PM

Glad to hear it. I'm curious as to why adding books is so slow. Can you open a ticket for it and I'll look into it when I get some time.

09-15-2008, 06:59 PM	#1
DoctorYof Junior Member Posts: 5 Karma: 10 Join Date: Sep 2008 Location: Derbyshire, UK Device: PRS-505	Calibre + GutenTorrent = Slow Not a complaint or request for help - simply some information. Having downloaded the 'GutenTorrent' collection and added this to my Calibre library, the program is now handling 12,000+ books. (This is on a E6600 2.4 GHz Core2Duo machine with 2GB ram running under Vista Ultimate 32-bit and Calibre 0.4.83). 1) Most importantly the program works as intended without any apparent tendency to fall over! 2) Startup without connection to the reader takes a little over 4 1/2 minutes from launch to showing the book list. 3) Adding a new ebook to the library (lrf format, normal novel size) takes ~90 seconds. 4) When adding a book the cursor doesn't change to the 'busy/waiting' cursor (Vista's spinning hoop) until 10 - 15 seconds have elapsed. 5) Searches are fast - e.g. only three or four seconds to pick out 35 books with "oz" in the title or author (including 7 "Oz" books) 6) Reordering the display from 'title' sort to 'author' sort took about 75 seconds. I now have to decide whether too much choice is too much of a good thing, and if so how best to delete most of my library. The most obvious issue is start-up. The first couple of times I tried this I (probably wrongly) assumed Calibre had crashed. Now I just read a book while waiting...

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09-15-2008, 09:14 PM	#2
kovidgoyal creator of calibre Posts: 43,826 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Interesting, I've never really tested or optimized calibre for more than a few hundred books. Can you try the the beta (it has substantial improvements in the database layer) and see if the performance improves?

09-16-2008, 03:21 PM	#3
DoctorYof Junior Member Posts: 5 Karma: 10 Join Date: Sep 2008 Location: Derbyshire, UK Device: PRS-505	I've now tried using 0.4.84b16. Startup time now 2 minutes (c.f. 4 1/2 mins with 0.4.83). Time to add a new book to library ~60 seconds (c.f. 90s) Searches still fast, resort time unchanged at 75 seconds. Looks like this version would be usable without drawbacks on a more reasonably sized large library (say a thousand titles or so!). No other problems with the beta at first experience - no plans to reinstall the stable release yet!

09-16-2008, 05:28 PM	#4
kovidgoyal creator of calibre Posts: 43,826 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Glad to hear it. I'm curious as to why adding books is so slow. Can you open a ticket for it and I'll look into it when I get some time.

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