[Kde-pim] Akonadi: single database design mistake?

[Milian Wolff]

On Tuesday 29 November 2011 12:14:40 Dmitry Torokhov wrote:
> On Tue, Nov 29, 2011 at 09:41:31PM +0200, Andras Mantia wrote:
> > Anders Lund wrote:
> > > On Tirsdag den 29. november 2011, Milian Wolff wrote:
> > >> I understand how this experience is far from optimal, but refrain from
> > >> spreading such FUD as the above. I also have lots of problems with
> > >> KMail2
> > >> but  I actually sit down and try to fix them. Which so far works out
> > >> pretty well.
> > > 
> > > Expressions of worries and frustration is not FUD.
> > > 
> > > Not everybody is a developer (though this list is for developers,
> > > agreed),
> > > or wants to develop or debug kmail or akonadi. Does that make us
> > > undesired
> > > as users? Does it mean we can not express our worries?
> > 
> > The problem is when users who are not developer draw the wrong conclusion
> > why this is unusable. In the situation described here the problem is the
> > conversion and nothing else.
> 
> If the problem was only with conversion then I kmail should be workign
> reasonably now. Alas I still see akonadi/mysql peg my CPU ifor a while every
> time I switch mailboxes:
> 
>  1754 dtor      20   0 1175m  37m 4108 S 62.7  1.0  10:22.35 mysqld
>  3375 dtor      20   0  909m 159m  22m R 61.4  4.0   8:21.99
> akonadi_imap_re
>  1751 dtor      20   0 1363m  20m 5016 S  6.9  0.5   8:59.32
> akonadiserver
> 
> > Yes, a valid concern for the user as he cannot get forward, but
> > telling this is because of the database, or because of X is FUD if the
> > claim is not carefully verified.
> 
> Dismissing that this is a FUD outright without considering my analysis
> is not very constructive either.

You did not give any analysis. "top" is not a profiler. Go and grab a free copy 
of vtune and run it on KMail and see why it's slow.

bye
-- 
Milian Wolff
mail at milianw.de
http://milianw.de
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