[Chimera-users] chimera performance

Greg Couch gregc at cgl.ucsf.edu
Wed May 6 12:23:38 PDT 2009

On Wed, 6 May 2009, Bala subramanian wrote:

> Friends,
> Is there any way to check the performance of chimera. I have been using
> chimera without any problems but now it is very slow, in opening even a
> small dna molecule and manipulating. Is there any way that i can check the
> root of the problem.
> Thanks,
> Bala

So it was formerly fast on the same computer?  This could happen on a 
Linux computer if you updated the kernel and forgot to reinstall the 
graphics driver (from ATI or NVidia, the open source 3D drivers still need 
work, but are improving).  Another possibility, on all operatings sytems, 
is that there is a background process that is using a lot of CPU or 
memory, so chimera doesn't have the resources it used to.

If you just want to check the graphics performance, then you can use the 
Benchmark tool in Tool / Utilities to guage the current performance.  And 
then you can compare to the reported scores to see if your graphics 
performance is reasonable (the Show button in the Benchmark tool brings up 
the web page).

 	- Greg

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