Coot severely slows down the system when I try to generate the density fit graph using multi-model (NMR-style) pdb file. First, it apparently generates as many dialogs as there are models, yet every graph has multiple bars (which is not very useful since they are overlapping). Computer becomes unresponsive for some time, but when it comes back everything is very slow (except that I can rotate and zoom in smoothly, things get slow if I re-centre).
The problem appears to be that coot eats a lot of RAM under these circumstances. I have 4Gb here and it's still not enough so machine starts using the swap and thus gets very-very slow. Interestingly, most of the extra RAM is owned by Xorg, not coot, and is not freed even when I exit (but it is when I log out). If I load the same number of models as individual pdb-files, I can generate multiple density fit graphs with virtually undetectable increase in memory use. This is, of course, a quite minor issue since multi-model files are rarely used. Ed. -- Coot est verendus
