[Kde-pim] Slowness in POP3 case, maildir resource stat()ing on /etc/localtime very often (was: Re: ... MySQL backend: tuning for larger accounts...)

[Martin Steigerwald]

Am Donnerstag, 27. März 2014, 12:24:39 schrieb Daniel Vrátil:
> Hi,
> 
> thanks a lot for all the analysis. I will need to read up on this and
> consult  MySQL documentation first, so I'll go through it next week

Gee, I now had it again with my POP3 setup. KMail blocked for minutes. akonadi 
maildir resource 100% CPU bound. And I think I found part of the reason why:

70% of all stat calls, about 100000 of them during that strace, were to stat 
/etc/localtime.

Bug 332684 - [Maildir] lots of stats calls to /etc/localtime on synchronizing 
folders 
https://bugs.kde.org/show_bug.cgi?id=332684


Not to blame on MySQL tough. :)

I might look into the code for that as that might be quite easy to fix.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7
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