[Cin] Resource leaking and high memory usage

I have imported a bunch of 4K video's and created a proxy out of it. In that Cinelerra session my memory usage became 9.9GB. When closing the project and reopening it the totally used memory reduced. What to make of this? skinkie 30046 319 62.0 17949716 9986224 pts/1 Sl+ 10:34 124:49 cin skinkie 144059 51.9 47.0 16050360 7573660 pts/1 Sl+ 11:14 1:56 cin Regardless of the above, I wonder if the memory pressure can be reduced in any way. Are the IDX's taking up memory? -- Stefan