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List:       kde-pim
Subject:    Re: [Kde-pim] Slowness in POP3 case, maildir resource stat()ing on /etc/localtime very often (was: R
From:       Jos Poortvliet <jospoortvliet () gmail ! com>
Date:       2014-03-27 17:13:36
Message-ID: 2040204.PvOLdSZIAj () linux-dzru ! site
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On Thursday 27 March 2014 16:35:44 Martin Steigerwald wrote:
> Am Donnerstag, 27. März 2014, 15:48:15 schrieb Daniel Vrátil:
> > On Thursday 27 of March 2014 14:46:57 Martin Steigerwald wrote:
> > > 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.
> > 
> > Is your TZ env variable set? If not set it to TZ="Europe/XX" (whatever
> > your
> > TZ is) and try again, it might reduce the amount of stats.
> 
> Seems to help:
> 
> merkaba:/tmp> grep -c "stat(\"/etc/localtime" strace-blub.txt
> 0
> merkaba:/tmp#1> grep -c "stat(" strace-blub.txt
> 998
> 
> Still KMail was blocked for some time, but appeared to be shorter,
> definately wasn ´t a minute, but this was also during KDE session startup
> with Akonadi starting and MySQL was using 120% CPU (possibly due to other
> initialization reasons).
> 
> I wait for some bigger mail batch to arrive and retest then and add comment
> to bug.

You want everybody on this list to send you a mail to help you test it?

:P

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

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