[chimerax-users] ChimeraX slower than Chimera at loading maps?

[Brian Hudson]

Hi,

I have a question about map-loading performance in ChimeraX.

We use Chimera for the visualization of EM maps, and have recently 
loaded ChimeraX 1.3 on our Centos 7 workstations.

We frequently run a script that opens Chimera (or ChimeraX) and loads 
one or more maps.  Running the script for the same 2 Gb CCP4-format map 
in three different programs, I get the following times for program 
startup + map loading, i.e., the time from when I run the script at the 
command line to when the map appears onscreen:

Chimera 1.12	13 seconds
ChimeraX 0.1	25 seconds
ChimeraX 1.3	66 seconds

This isn't exactly the direction I had hoped performance would trend, 
and was wondering if there was anything that could be done within 
ChimeraX 1.3 to speed the process along a little.

Thanks,

Brian

-- 
BRIAN HUDSON, Ph.D.
Biocurator, RCSB Protein Data Bank
Assistant Research Professor, Institute for Quantitative Biomedicine
Rutgers, The State University of New Jersey
174 Frelinghuysen Road, Piscataway NJ 08854
P: 848.445.4941 | E: brian.hudson at rcsb.org