A couple quick/easy 'discoveries':
    Time to open directories seems about linear in number of items (1m 
20sec for 370, 2m 50sec for 670.)  Anyway apparently not exponential. 
(These were all text files BTW.)
    A few times nautilus has remained busy/hung for several minutes 
_after_ showing the contents list, but it's always come back when I wait 
it out.
    It seems the same regardless of zoom, or whether I ask for list or 
icons, and as far as I can tell (with stopwatch) is nearly constant for 
any given directory.
    It doesn't seem to be  thrashing the HD, in fact I think I'm only 
seeing normal (background?) HD access.  Memory usage seems normal; about 
1GB of 3.7 available, no swapping activity.  Whatever it's tangled in 
seems big enough to be distributed well over 4 CPUs, so I'd think not a 
tight loop.

    THE BIG NEWS: It seems the really long delays only occur when I 
click on the 'turn down' arrow to ask the directory to open.  When I 
double click on the folder icon/symbol it opens much faster, but not as 
quickly as I think it used to(?) Also clicking the 'Up' arrow on the 
resulting window seems to take an unreasonably long time to get back to 
the parent directory.  I hope someone can make sense of those.


Sebastien Bacher wrote:
> the bug without extra details is of no real use, it requires at least a
> description of scenario which trigger the issue, you seem to be the only
> one to get the bug and to have it randomly, could you try to figure if
> the issue is specific to a directory, some files, list or icon view, a
> zoom level, etc?
>
>

-- 
nautilus excessive cpu and delay opening directories
https://bugs.launchpad.net/bugs/364838
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