Calibre GUI is very slow to update

[Katsunami]

It is slow when I resize the window while it is displaying a list of all the books in my library, showing all columns. In my case, those are 9 columns, of which 5 are custom columns, and one is colored red.

[JSWolf]

Originally Posted by Katsunami

It is slow when I resize the window while it is displaying a list of all the books in my library, showing all columns. In my case, those are 9 columns, of which 5 are custom columns, and one is colored red.

I'll check it out. I have 12 columns, 4 are custom, and one is blue or not based on the read column.

[JSWolf]

What graphics card are you running? Mine is old and slow. I have a new one waiting to be installed. yes, it is a little bit slow when sizing the Calibre window. But when I get the new card in place, I'll test again.

[Katsunami]

The graphics card should be fine. It's an nVidia GTX 560 Ti, using the latest drivers, which runs games such as The Witcher 2 on the highest settings without problems.

The graphics card is not going to make a difference for this 2D work.

[JSWolf]

Calibre is slow to update the Windows when you have a large window.I now have an EVGA Superclocked GTX 650 with 2gig of ram and it's no better for speed. It's not so slow that I cannot live with it.

[Katsunami]

I've just upgraded to Calibre 1.44, which, according to the changelog, had some improvements regarding GUI updating and rendering.

I don't know what Kovid did, but it's noticeably faster now. Not (yet) as fast as resizing an Explorer window, but there is a definite improvement. Thanks

[chaley]

Originally Posted by Katsunami

I've just upgraded to Calibre 1.44, which, according to the changelog, had some improvements regarding GUI updating and rendering.

I don't know what Kovid did, but it's noticeably faster now. Not (yet) as fast as resizing an Explorer window, but there is a definite improvement. Thanks

We did two things:

1) Switch to using templates compiled to python so they run faster.
2) Cache negative color/icon results (templates that result in no color or icon), thus avoiding running them multiple times.

Note: if you have multiple color rules for the same column then be sure that you downloaded V1.44 after 14:00 Friday UK time. My first implementation was not entirely successful. Kovid remade the release with the fixes.

[Katsunami]

I downloaded it after work, so it would have been at least 18:00 Dutch time. Maybe I'll redownload and reinstall, just to be 100% sure I have the correct version.