[Chandler-dev] Pre-loading items as a performance optimization

[Jeffrey Harris]

Hi Grant,

> Along these lines, BTW, it seems that there are gains to be had by
> removing the loading of items from the mEnd() and mStart() functions in
> Calendar.py. I'm testing changes that do this, and these do improve
> things a lot (0.59s to 0.22s for PerfLargeDataJumpWeek in the
> measurement I did).

Cool.

> I'm also curious as to why we are inserting keys into indexes when
> generating occurrences. As far as I know, those objects shouldn't appear
> in any collections with indexes.

I believe that occurrences appear in itemsWithReminders, and that's
indexed by reminderTime.

Sincerely,
Jeffrey