[Konsole-devel] konsole kpart
Giacomo
delleceste at gmail.com
Mon Oct 8 09:44:10 UTC 2007
Hi Robert!
I will look for that patch!
I compiled kde4 by svn!
Do you think that the problem still remains in the latest code?
Or do you think they have removed it?
Thanks for your advice!
Have a good day.
Giacomo
2007/10/4, Robert Knight <robertknight at gmail.com>:
>
> > At a first glance, Konsole on KDE4 seems to consume more CPU than
> > Konsole-KDE3.
>
> That is unexpected behaviour. There is a buggy patch to Qt which does
> cause a performance problem though which might be related. If you are
> compiling KDE 4 from SVN then try removing qt-copy patch #0182 (in
> trunk/qt-copy/patches). Otherwise you will have to ask the person who
> packaged KDE 4 for you to do likewise.
>
> Regards,
> Robert.
>
>
> On 04/10/2007, Giacomo <delleceste at gmail.com> wrote:
> > 2007/10/3, Giacomo <delleceste at gmail.com>:
> > Hi, I mean Konsole KDE3.x.
> > Tomorrow i will try the same program inside the Konsole provided by KDE4
> > and will let you know.
> >
> > Thank you and good night.
> >
> > ---> Here i am!
> >
> > At a first glance, Konsole on KDE4 seems to consume more CPU than
> > Konsole-KDE3.
> > This is a first point, which probably main affects the performance also
> in
> > my
> > Konsole KPart.
> >
> > If you think it is useful, i can attach the output of `top' for
> > instance for some
> > time, to provide you an example of the two loads.
> >
> > Thank you and have a good day
> > giacomo
> >
> >
> > >
> > > 2007/10/3, Robert Knight < robertknight at gmail.com>:
> > > > > inside a KApplication and a KonsolePart, it runs much slower.
> > > >
> > > > When you are running the application in a console, do you mean
> > > > Konsole/KDE 4? or a different terminal program?
> > > >
> > > > Regards,
> > > > Robert.
> > > >
> > > > On 03/10/2007, Giacomo <delleceste at gmail.com> wrote:
> > > > > Well, my application is named "ipfire".
> > > > >
> > > > > If i launch it as
> > > > >
> > > > > ./ipfire
> > > > >
> > > > > in a console, it goes fast (low CPU usage).
> > > > >
> > > > > if i do
> > > > >
> > > > > konsole_part->startProgram("./ipfire");
> > > > >
> > > > > inside a KApplication and a KonsolePart, it runs much slower.
> > > > >
> > > > > Thank you very much!
> > > > >
> > > > > Giacomo
> > > > >
> > > > >
> > > > > 2007/10/3, Robert Knight < robertknight at gmail.com>:
> > > > > > > This is the reason why i was wondering why such a greater
> usage of
> > > > > > > CPU when i switched to a KonsolePart.
> > > > > >
> > > > > > Let me clarify, are you saying that you have two separate
> > applications
> > > > > > here (one the console application and one the GUI application
> with
> > an
> > > > > > embedded Konsole part)? If so, are you saying the console app
> is
> > > > > > running slower or the GUI app is running slower?
> > > > > >
> > > > > > Regards,
> > > > > > Robert.
> > > > > >
> > > > > > On 03/10/2007, Giacomo < delleceste at gmail.com> wrote:
> > > > > > > 2007/10/3, Robert Knight <robertknight at gmail.com>:
> > > > > > > > > which does the same amout of printf() calls and
> > > > > > > > > has the same logic, consumes much more CPU (3,4,5% ).
> > > > > > > >
> > > > > > > > If you are printing a lot of messages to the terminal then
> there
> > > will
> > > > > > > > be a certain overhead caused by the output processing and
> text
> > > > > > > > rendering. I would expect the overhead to be very low
> unless
> > you
> > > are
> > > > > > > > printing a very large number of messages.
> > > > > > >
> > > > > > > Yes there is a lot of messages to print out on the console,
> but
> > this
> > > application
> > > > > > > has not been changed when embedded into a KonsolePart.
> > > > > > > This is the reason why i was wondering why such a greater
> usage of
> > > CPU when
> > > > > > > i switched to a KonsolePart.
> > > > > > > I mean, the application i monitor on the konsole KPart is the
> same
> > i
> > > ran into
> > > > > > > a console Konsole alone, i.e. the same executable started with
> > > > > > >
> > > > > > > konsole_part->startProgram("program_name");
> > > > > > >
> > > > > > > Thank you anyway,
> > > > > > >
> > > > > > > Giacomo
> > > > > > >
> > > > > > >
> > > > > > > >
> > > > > > > > What exactly are these messages in any case?
> > > > > > > >
> > > > > > > > > Is this an issue related to overload caused by embedding
> > Konsole
> > > in a KPart?
> > > > > > > > > Can i improve the performance of my Application?
> > > > > > > >
> > > > > > > > Please don't try and guess where your application's
> performance
> > > > > > > > problems lie. Use a profiling tool. I recommend callgrind,
> > which
> > > is
> > > > > > > > part of the valgrind suite. kcachegrind can then be used to
> > view
> > > and
> > > > > > > > analyse the results. After installing valgrind, it can be
> used
> > > like
> > > > > > > > so:
> > > > > > > >
> > > > > > > > valgrind --tool=calllgrind yourapplication 2> logfile.out
> > > > > > > >
> > > > > > > > ... use your application as normal for a short while and
> then
> > > close it ...
> > > > > > > >
> > > > > > > > kcachegrind logfile.out
> > > > > > > >
> > > > > > > > This will give you a much more detailed analysis of where
> your
> > > > > > > > application is spending its CPU cycles. If it turns out
> that a
> > > lot of
> > > > > > > > time is being spent in the Konsole part then please post the
> > > callgrind
> > > > > > > > log to this list. It might be too large to post as an
> > attachment
> > > > > > > > however.
> > > > > > > >
> > > > > > > > Regards,
> > > > > > > > Robert.
> > > > > > > >
> > > > > > > > On 03/10/2007, Giacomo < delleceste at gmail.com> wrote:
> > > > > > > > > Good morning to all.
> > > > > > > > >
> > > > > > > > > I used to have a program running on the console (konsole)
> and
> > > now i am
> > > > > > > > > porting it to a Qt4 (KDE4) application.
> > > > > > > > > The part of the program which used to print out messages
> on
> > the
> > > console,
> > > > > > > > > has been embedded in a Konsole KPart.
> > > > > > > > >
> > > > > > > > > The issue is that, while when it was a console application
> it
> > > used to consume
> > > > > > > > > a little percentage of the CPU (< 1% on the peaks of the
> > > printf() calls ),
> > > > > > > > > now the _same_ application, which does the same amout of
> > > printf() calls and
> > > > > > > > > has the same logic, consumes much more CPU (3,4,5% ).
> > > > > > > > >
> > > > > > > > > Is this an issue related to overload caused by embedding
> > Konsole
> > > in a KPart?
> > > > > > > > > Can i improve the performance of my Application?
> > > > > > > > > Or is it a price to pay to embed a console application
> into a
> > > Konsole KPart?
> > > > > > > > > Or is it because i have a alpha version of KDE4?
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Thank you for any advice.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > > Giacomo S.
> > > > > > > > > http://www.giacomos.it
> > > > > > > > >
> > > > > > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > > > > > >
> > > > > > > > > IPFIREwall ( http://www.giacomos.it/ipfire) viene
> presentato
> > > > > > > > > all'Universita` degli Studi di Udine, il 28 ottobre, in
> > > occasione del
> > > > > > > > > Linux Day 2006:
> > > > > > > > > http://iglu.cc.uniud.it/linuxday
> > > > > > > > >
> > > > > > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > > > > > >
> > > > > > > > > . '' `.
> > > > > > > > > : :' :
> > > > > > > > > `. ` '
> > > > > > > > > `- Debian GNU/Linux -- The power of freedom
> > > > > > > > > http://www.debian.org
> > > > > > > > > _______________________________________________
> > > > > > > > > konsole-devel mailing list
> > > > > > > > > konsole-devel at kde.org
> > > > > > > > >
> > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > > > > > > >
> > > > > > > > _______________________________________________
> > > > > > > > konsole-devel mailing list
> > > > > > > > konsole-devel at kde.org
> > > > > > > >
> > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > Giacomo S.
> > > > > > > http://www.giacomos.it
> > > > > > >
> > > > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > > > >
> > > > > > > IPFIREwall (http://www.giacomos.it/ipfire) viene presentato
> > > > > > > all'Universita` degli Studi di Udine, il 28 ottobre, in
> occasione
> > > del
> > > > > > > Linux Day 2006:
> > > > > > > http://iglu.cc.uniud.it/linuxday
> > > > > > >
> > > > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > > > >
> > > > > > > . '' `.
> > > > > > > : :' :
> > > > > > > `. ` '
> > > > > > > `- Debian GNU/Linux -- The power of freedom
> > > > > > > http://www.debian.org
> > > > > > > _______________________________________________
> > > > > > > konsole-devel mailing list
> > > > > > > konsole-devel at kde.org
> > > > > > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > > > > >
> > > > > > _______________________________________________
> > > > > > konsole-devel mailing list
> > > > > > konsole-devel at kde.org
> > > > > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Giacomo S.
> > > > > http://www.giacomos.it
> > > > >
> > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > >
> > > > > IPFIREwall (http://www.giacomos.it/ipfire) viene presentato
> > > > > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione
> del
> > > > > Linux Day 2006:
> > > > > http://iglu.cc.uniud.it/linuxday
> > > > >
> > > > > - - - - - - - - - - - - - - - - - - - - - -
> > > > >
> > > > > . '' `.
> > > > > : :' :
> > > > > `. ` '
> > > > > `- Debian GNU/Linux -- The power of freedom
> > > > > http://www.debian.org
> > > > > _______________________________________________
> > > > > konsole-devel mailing list
> > > > > konsole-devel at kde.org
> > > > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > > >
> > > > _______________________________________________
> > > > konsole-devel mailing list
> > > > konsole-devel at kde.org
> > > > https://mail.kde.org/mailman/listinfo/konsole-devel
> > > >
> > >
> > >
> > > --
> > >
> > > Giacomo S.
> > > http://www.giacomos.it
> > >
> > > - - - - - - - - - - - - - - - - - - - - - -
> > >
> > > IPFIREwall ( http://www.giacomos.it/ipfire) viene presentato
> > > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del
> > > Linux Day 2006:
> > > http://iglu.cc.uniud.it/linuxday
> > >
> > > - - - - - - - - - - - - - - - - - - - - - -
> > >
> > > . '' `.
> > > : :' :
> > > `. ` '
> > > `- Debian GNU/Linux -- The power of freedom
> > > http://www.debian.org
> > >
> >
> >
> > --
> > Giacomo S.
> > http://www.giacomos.it
> >
> > - - - - - - - - - - - - - - - - - - - - - -
> >
> > IPFIREwall (http://www.giacomos.it/ipfire) viene presentato
> > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del
> > Linux Day 2006:
> > http://iglu.cc.uniud.it/linuxday
> >
> > - - - - - - - - - - - - - - - - - - - - - -
> >
> > . '' `.
> > : :' :
> > `. ` '
> > `- Debian GNU/Linux -- The power of freedom
> > http://www.debian.org
> > _______________________________________________
> > konsole-devel mailing list
> > konsole-devel at kde.org
> > https://mail.kde.org/mailman/listinfo/konsole-devel
> >
> _______________________________________________
> konsole-devel mailing list
> konsole-devel at kde.org
> https://mail.kde.org/mailman/listinfo/konsole-devel
>
--
Giacomo S.
http://www.giacomos.it
- - - - - - - - - - - - - - - - - - - - - -
IPFIREwall (http://www.giacomos.it/ipfire) viene presentato
all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del
Linux Day 2006:
http://iglu.cc.uniud.it/linuxday
- - - - - - - - - - - - - - - - - - - - - -
. '' `.
: :' :
`. ` '
`- Debian GNU/Linux -- The power of freedom
http://www.debian.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/konsole-devel/attachments/20071008/713ac803/attachment.html>
More information about the konsole-devel
mailing list