find what is keeping ghini busy

[mfrasca]

I was examining issue #133, and I notice remarkable slow-down in ghini-3.1, whenever I do just any search after a larger selection.

Expected behaviour

just like ghini-1.0, click on one of the initial standard searches in the home page, and get to the results page as an immediate result.

Actual behaviour

in the home page, you click on a standard search containing say 500 objects; and you get your results quite quickly; you immediately go back to the home page; and click on a different search, also a small one will do; the button will show 'pressed' and the results page will take time to show; the CPU will be at 80% or more working for ghini, doing what? I don't know.