[Kroupware] Analysis of performance hit on big calendars

[Arend van Beelen]

Hi!

I've been looking in the KMail sources to find why it 
takes so long to load big calendar folders. If I click a 
folder about 1000 calendar entries encoded in TNEF format, 
it takes 15+ seconds to load the calendar. I found the 
performance hit occurs in a loop in 
KMGroupware::slotInitIncidences(). If I comment the for() 
loop in that function, the hit is gone (but, of course, 
the calendar entries aren't loaded either). Do you think 
it might be possible to optimize this loop some way? 
Possibly in a way that only entries for the selected 
day(s) are loaded?

Greets,

Arend jr.