Anonymous wrote:

>   We have the following system and have found that Coot (0.5.2 and 0.6) runs
> very slowly:
>
> -Dual Xeons @ 3 GHz
> -4 GB RAM
> -nVidia 256 MB Quadro FX 3450/4000 SDI
> - >250 GB hard drive space
> -Red Hat Enterprise Linux WS release 4 (Nahant Update 7)
>

How does glxgears run? On this desktop here (GeForce 9600 GT, I think) I get:

glxgears: 107396 frames in 5.0 seconds = 21479.049 FPS
Coot spin test: INFO:: 22163 frames in  5.00 seconds = 4432.60 frames/sec

Coot graphics speed should be roughly proportional.


> Rotating a 500 amino acid model is fine but when we open map (.mtz) with it
> the rotation drags as does walking along the chain.  Increasing the Map
> Radius makes it worse, decreasing it makes it better.
>

Yes, that is typical behaviour.



> We have another system that is less powerful but runs smooth using the same
> model/map.
>
> Where should we start troubleshooting this?
>
>

From "slow computer configuration" section of the manual?

http://www.biop.ox.ac.uk/coot/doc/coot.html#Slow-Computer-Configuration

Also, try the setting:

(set-display-lists-for-maps 0)

or

(set-display-lists-for-maps 0)

Paul.

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