tested on 2.56.0 r34200
i;m workin on my own animation project..
and.. it's not that complicate scene (poly count about 160000)
but it's getting really slow when open
properties window -> view tab
and
it's really hard to pick something((over 5000 objects) when open
outliner wndow
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Profiled the outliner with 10,000 objects.
It is indeed very slow.
the for loop in outliner.c's check_persistant() seems to be the main cause (~80% of cpu time here while selecting in outliner).
Leave this one for Ton.
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I will leave this as a future todo. There's plenty of other places in our code that makes things very slow for 10k objects.
By design, using a couple of 100s of objects per scene is optimal. Merge objects, or put them in groups, or different scenes...