If the meta.xml file of an odf document does not contain an object count the
document loads 2 to 6 times slower than if it does. The progress bar shows, what
looks like, the progress of loading every object separately, this is not usefull
and this very frequent updating of the progress bar may be responsable for the
slow loading of such a document.

I attached two documents object-count.odg and no-object-count.odt, the times it
took to open these two documents, on different platforms is shown in the table
below.

Machine       OS            OpenOffice     Time          Time      Time
                            version        object-count  no-count  relative

G4 1.25 Ghz   Debian 5.0    3.0.1          0:31          2:23      4.6
G4 1.25 Ghz   OS X 10.4.11  NeoOffice 3.0  0:37          1:28      2.3
AMD64 2.3 Ghz Debian 5.0    3.0.1          0:07          0:42      6.0
AMD64 2.3 Ghz osol0906      3.1            0:11          0:30      2.7


This is hardly a major issue but, as far as I can tell, object-count is not a
mandatory item in the the ODF specification, so the difference shouldn't be this
large, it is easier for developers of ODF producing applications not to include
an object count.