[Kde-pim] Excessive amount of queries

[Christian Mollekopf]

On Monday 01 December 2014 12.29:39 Milian Wolff wrote:
> Hello all,
> 
> I know you are all thinking about Akonadi Next, but I'd love to see some
> work on improving the Akonadi we have now, and will have for quite some
> time.
> 
> When you enable the query debugger in akonadiconsole, you'll see that just
> switching to a different email in KMail, will easily end up triggering ~200
> queries. Can someone with more knowledge tell me if really all of that is
> required? 

I doubt it but would have to look at the actual queries.

> I'm in the process of improving the query debugger interface, to
> aggregate information on queries. That should show us better which queries
> are triggered repeatedly and take a long time.

One part that I improved in the kolab branches that did not yet make it 
upstream is refactoring LIST so it doesn't do recursive queries. This is where 
a single CollectionFetchJob can easily trigger N queries where N is the number 
of folders you have. So in case you stumble over that, be aware that this 
should be already solved somewhere (and that I will merge that upstream as 
well).

Cheers,
Christian

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