[Bug 243569] Kmail is extremely slow and uses CPU

[Martin L ü c h e m]

https://bugs.kde.org/show_bug.cgi?id=243569





--- Comment #15 from Martin L ü c h e m <Heinrich20 gmx de>  2011-05-26 23:35:11 ---
Hi Christophe,

Am Donnerstag, 26. Mai 2011, um 23:09:14 schrieb Christophe Giboudeaux:
> https://bugs.kde.org/show_bug.cgi?id=243569
> 
> 
> 
> 
> 
> --- Comment #14 from Christophe Giboudeaux <cgiboudeaux gmx com> 
> 2011-05-26 23:09:12 --- (In reply to comment #13)
> 
> > Just to clarify what version of KMail we talk about! In addition I
> > wonder, if opening an incident like that is useful at all - is it or
> > not? Does someone work on the old and obviously most often used version
> > of KMail??
> 
> No, KMail 1 bugs that cannot be reproduced in KMail2 are closed.
> (revisiting them all takes a lot of time,however).
> 
> Note that this report and the comments are not really helpful: The cpu
> usage can be caused by totally different operations.

Oh yes, for sure, everything is possible!

> 
> Without some real debugging (memcheck, massif...) there's nothing that can
> be done

This bug is more than one year old and, yes I sent in the result of debugging 
+ a video. Would you be so kind to look at this:

"Re: [Bug 225602] Kmail is extremely slow and uses CPU without any reason
 Datum: 15.04.2010 15:34
 Von: Martin Lüchem <Heinrich20 at gmx.de>
 An: bug-control at bugs.kde.org

Hi Thomas,

the situation improved a little bit. Some weeks everything seemed to be ok but 
then the problem reoccured. Now we have CPU usage up to 20%. This occurs in 
cycles!

This is the result of GDB. I hope, what I did is correct and helps:

Program received signal SIGINT, Interrupt.
0x00007fe43e12c743 in *__GI___poll (fds=<value optimized out>, nfds=<value 
optimized out>, timeout=3024)
    at ../sysdeps/unix/sysv/linux/poll.c:87
87      in ../sysdeps/unix/sysv/linux/poll.c
(gdb) backtrace
#0  0x00007fe43e12c743 in *__GI___poll (fds=<value optimized out>, nfds=<value 
optimized out>, timeout=3024)"

and so on!

"Re: [Bug 225602] Kmail is extremely slow and uses CPU without any reason
 Datum: 18.04.2010 14:14
 Von: Martin Lüchem <Heinrich20 at gmx.de>
 An: Thomas McGuire <mcguire at kde.org>

Hi Thomas,

this vid to show you, how KMail uses CPU without any action.

Regards, Martin"


So, why not, close this bug! May be I am one of the remaining idiots that have 
been used Kmail since 1999. (This is NOT) Very funny! 

Martin

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