Hi Robert!<br><br>I will look for that patch!<br>I compiled kde4 by svn!<br><br>Do you think that the problem still remains in the latest code?<br>Or do you think they have removed it?<br><br>Thanks for your advice!<br><br>
Have a good day.<br>Giacomo<br><br><br><br><div><span class="gmail_quote">2007/10/4, Robert Knight <<a href="mailto:robertknight@gmail.com">robertknight@gmail.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
> At a first glance, Konsole on KDE4 seems to consume more CPU than<br>> Konsole-KDE3.<br><br>That is unexpected behaviour. There is a buggy patch to Qt which does<br>cause a performance problem though which might be related. If you are
<br>compiling KDE 4 from SVN then try removing qt-copy patch #0182 (in<br>trunk/qt-copy/patches). Otherwise you will have to ask the person who<br>packaged KDE 4 for you to do likewise.<br><br>Regards,<br>Robert.<br><br>
<br>On 04/10/2007, Giacomo <<a href="mailto:delleceste@gmail.com">delleceste@gmail.com</a>> wrote:<br>> 2007/10/3, Giacomo <<a href="mailto:delleceste@gmail.com">delleceste@gmail.com</a>>:<br>> Hi, I mean Konsole
KDE3.x.<br>> Tomorrow i will try the same program inside the Konsole provided by KDE4<br>> and will let you know.<br>><br>> Thank you and good night.<br>><br>> ---> Here i am!<br>><br>> At a first glance, Konsole on KDE4 seems to consume more CPU than
<br>> Konsole-KDE3.<br>> This is a first point, which probably main affects the performance also in<br>> my<br>> Konsole KPart.<br>><br>> If you think it is useful, i can attach the output of `top' for
<br>> instance for some<br>> time, to provide you an example of the two loads.<br>><br>> Thank you and have a good day<br>> giacomo<br>><br>><br>> ><br>> > 2007/10/3, Robert Knight < <a href="mailto:robertknight@gmail.com">
robertknight@gmail.com</a>>:<br>> > > > inside a KApplication and a KonsolePart, it runs much slower.<br>> > ><br>> > > When you are running the application in a console, do you mean<br>> > > Konsole/KDE 4? or a different terminal program?
<br>> > ><br>> > > Regards,<br>> > > Robert.<br>> > ><br>> > > On 03/10/2007, Giacomo <<a href="mailto:delleceste@gmail.com">delleceste@gmail.com</a>> wrote:<br>> > > > Well, my application is named "ipfire".
<br>> > > ><br>> > > > If i launch it as<br>> > > ><br>> > > > ./ipfire<br>> > > ><br>> > > > in a console, it goes fast (low CPU usage).<br>> > > >
<br>> > > > if i do<br>> > > ><br>> > > > konsole_part->startProgram("./ipfire");<br>> > > ><br>> > > > inside a KApplication and a KonsolePart, it runs much slower.
<br>> > > ><br>> > > > Thank you very much!<br>> > > ><br>> > > > Giacomo<br>> > > ><br>> > > ><br>> > > > 2007/10/3, Robert Knight <
<a href="mailto:robertknight@gmail.com">robertknight@gmail.com</a>>:<br>> > > > > > This is the reason why i was wondering why such a greater usage of<br>> > > > > > CPU when i switched to a KonsolePart.
<br>> > > > ><br>> > > > > Let me clarify, are you saying that you have two separate<br>> applications<br>> > > > > here (one the console application and one the GUI application with
<br>> an<br>> > > > > embedded Konsole part)? If so, are you saying the console app is<br>> > > > > running slower or the GUI app is running slower?<br>> > > > ><br>> > > > > Regards,
<br>> > > > > Robert.<br>> > > > ><br>> > > > > On 03/10/2007, Giacomo < <a href="mailto:delleceste@gmail.com">delleceste@gmail.com</a>> wrote:<br>> > > > > > 2007/10/3, Robert Knight <
<a href="mailto:robertknight@gmail.com">robertknight@gmail.com</a>>:<br>> > > > > > > > which does the same amout of printf() calls and<br>> > > > > > > > has the same logic, consumes much more CPU (3,4,5% ).
<br>> > > > > > ><br>> > > > > > > If you are printing a lot of messages to the terminal then there<br>> > will<br>> > > > > > > be a certain overhead caused by the output processing and text
<br>> > > > > > > rendering. I would expect the overhead to be very low unless<br>> you<br>> > are<br>> > > > > > > printing a very large number of messages.<br>> > > > > >
<br>> > > > > > Yes there is a lot of messages to print out on the console, but<br>> this<br>> > application<br>> > > > > > has not been changed when embedded into a KonsolePart.
<br>> > > > > > This is the reason why i was wondering why such a greater usage of<br>> > CPU when<br>> > > > > > i switched to a KonsolePart.<br>> > > > > > I mean, the application i monitor on the konsole KPart is the same
<br>> i<br>> > ran into<br>> > > > > > a console Konsole alone, i.e. the same executable started with<br>> > > > > ><br>> > > > > > konsole_part->startProgram("program_name");
<br>> > > > > ><br>> > > > > > Thank you anyway,<br>> > > > > ><br>> > > > > > Giacomo<br>> > > > > ><br>> > > > > >
<br>> > > > > > ><br>> > > > > > > What exactly are these messages in any case?<br>> > > > > > ><br>> > > > > > > > Is this an issue related to overload caused by embedding
<br>> Konsole<br>> > in a KPart?<br>> > > > > > > > Can i improve the performance of my Application?<br>> > > > > > ><br>> > > > > > > Please don't try and guess where your application's performance
<br>> > > > > > > problems lie. Use a profiling tool. I recommend callgrind,<br>> which<br>> > is<br>> > > > > > > part of the valgrind suite. kcachegrind can then be used to
<br>> view<br>> > and<br>> > > > > > > analyse the results. After installing valgrind, it can be used<br>> > like<br>> > > > > > > so:<br>> > > > > > >
<br>> > > > > > > valgrind --tool=calllgrind yourapplication 2> logfile.out<br>> > > > > > ><br>> > > > > > > ... use your application as normal for a short while and then
<br>> > close it ...<br>> > > > > > ><br>> > > > > > > kcachegrind logfile.out<br>> > > > > > ><br>> > > > > > > This will give you a much more detailed analysis of where your
<br>> > > > > > > application is spending its CPU cycles. If it turns out that a<br>> > lot of<br>> > > > > > > time is being spent in the Konsole part then please post the
<br>> > callgrind<br>> > > > > > > log to this list. It might be too large to post as an<br>> attachment<br>> > > > > > > however.<br>> > > > > > ><br>
> > > > > > > Regards,<br>> > > > > > > Robert.<br>> > > > > > ><br>> > > > > > > On 03/10/2007, Giacomo < <a href="mailto:delleceste@gmail.com">
delleceste@gmail.com</a>> wrote:<br>> > > > > > > > Good morning to all.<br>> > > > > > > ><br>> > > > > > > > I used to have a program running on the console (konsole) and
<br>> > now i am<br>> > > > > > > > porting it to a Qt4 (KDE4) application.<br>> > > > > > > > The part of the program which used to print out messages on<br>> the<br>
> > console,<br>> > > > > > > > has been embedded in a Konsole KPart.<br>> > > > > > > ><br>> > > > > > > > The issue is that, while when it was a console application it
<br>> > used to consume<br>> > > > > > > > a little percentage of the CPU (< 1% on the peaks of the<br>> > printf() calls ),<br>> > > > > > > > now the _same_ application, which does the same amout of
<br>> > printf() calls and<br>> > > > > > > > has the same logic, consumes much more CPU (3,4,5% ).<br>> > > > > > > ><br>> > > > > > > > Is this an issue related to overload caused by embedding
<br>> Konsole<br>> > in a KPart?<br>> > > > > > > > Can i improve the performance of my Application?<br>> > > > > > > > Or is it a price to pay to embed a console application into a
<br>> > Konsole KPart?<br>> > > > > > > > Or is it because i have a alpha version of KDE4?<br>> > > > > > > ><br>> > > > > > > ><br>> > > > > > > >
<br>> > > > > > > > Thank you for any advice.<br>> > > > > > > ><br>> > > > > > > ><br>> > > > > > > ><br>> > > > > > > > --
<br>> > > > > > > > Giacomo S.<br>> > > > > > > > <a href="http://www.giacomos.it">http://www.giacomos.it</a><br>> > > > > > > ><br>> > > > > > > > - - - - - - - - - - - - - - - - - - - - - -
<br>> > > > > > > ><br>> > > > > > > > IPFIREwall ( <a href="http://www.giacomos.it/ipfire">http://www.giacomos.it/ipfire</a>) viene presentato<br>> > > > > > > > all'Universita` degli Studi di Udine, il 28 ottobre, in
<br>> > occasione del<br>> > > > > > > > Linux Day 2006:<br>> > > > > > > > <a href="http://iglu.cc.uniud.it/linuxday">http://iglu.cc.uniud.it/linuxday</a><br>> > > > > > > >
<br>> > > > > > > > - - - - - - - - - - - - - - - - - - - - - -<br>> > > > > > > ><br>> > > > > > > > . '' `.<br>> > > > > > > > : :' :
<br>> > > > > > > > `. ` '<br>> > > > > > > > `- Debian GNU/Linux -- The power of freedom<br>> > > > > > > > <a href="http://www.debian.org">
http://www.debian.org</a><br>> > > > > > > > _______________________________________________<br>> > > > > > > > konsole-devel mailing list<br>> > > > > > > >
<a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br>> > > > > > > ><br>> > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel
</a><br>> > > > > > > ><br>> > > > > > > _______________________________________________<br>> > > > > > > konsole-devel mailing list<br>> > > > > > >
<a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br>> > > > > > ><br>> > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel
</a><br>> > > > > > ><br>> > > > > ><br>> > > > > ><br>> > > > > > --<br>> > > > > > Giacomo S.<br>> > > > > >
<a href="http://www.giacomos.it">http://www.giacomos.it</a><br>> > > > > ><br>> > > > > > - - - - - - - - - - - - - - - - - - - - - -<br>> > > > > ><br>> > > > > > IPFIREwall (
<a href="http://www.giacomos.it/ipfire">http://www.giacomos.it/ipfire</a>) viene presentato<br>> > > > > > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione<br>> > del<br>> > > > > > Linux Day 2006:
<br>> > > > > > <a href="http://iglu.cc.uniud.it/linuxday">http://iglu.cc.uniud.it/linuxday</a><br>> > > > > ><br>> > > > > > - - - - - - - - - - - - - - - - - - - - - -
<br>> > > > > ><br>> > > > > > . '' `.<br>> > > > > > : :' :<br>> > > > > > `. ` '<br>> > > > > > `- Debian GNU/Linux -- The power of freedom
<br>> > > > > > <a href="http://www.debian.org">http://www.debian.org</a><br>> > > > > > _______________________________________________<br>> > > > > > konsole-devel mailing list
<br>> > > > > > <a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br>> > > > > > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel
</a><br>> > > > > ><br>> > > > > _______________________________________________<br>> > > > > konsole-devel mailing list<br>> > > > > <a href="mailto:konsole-devel@kde.org">
konsole-devel@kde.org</a><br>> > > > > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel</a><br>> > > > ><br>> > > >
<br>> > > ><br>> > > > --<br>> > > > Giacomo S.<br>> > > > <a href="http://www.giacomos.it">http://www.giacomos.it</a><br>> > > ><br>> > > > - - - - - - - - - - - - - - - - - - - - - -
<br>> > > ><br>> > > > IPFIREwall (<a href="http://www.giacomos.it/ipfire">http://www.giacomos.it/ipfire</a>) viene presentato<br>> > > > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del
<br>> > > > Linux Day 2006:<br>> > > > <a href="http://iglu.cc.uniud.it/linuxday">http://iglu.cc.uniud.it/linuxday</a><br>> > > ><br>> > > > - - - - - - - - - - - - - - - - - - - - - -
<br>> > > ><br>> > > > . '' `.<br>> > > > : :' :<br>> > > > `. ` '<br>> > > > `- Debian GNU/Linux -- The power of freedom<br>> > > >
<a href="http://www.debian.org">http://www.debian.org</a><br>> > > > _______________________________________________<br>> > > > konsole-devel mailing list<br>> > > > <a href="mailto:konsole-devel@kde.org">
konsole-devel@kde.org</a><br>> > > > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel</a><br>> > > ><br>> > > _______________________________________________
<br>> > > konsole-devel mailing list<br>> > > <a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br>> > > <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">https://mail.kde.org/mailman/listinfo/konsole-devel
</a><br>> > ><br>> ><br>> ><br>> > --<br>> ><br>> > Giacomo S.<br>> > <a href="http://www.giacomos.it">http://www.giacomos.it</a><br>> ><br>> > - - - - - - - - - - - - - - - - - - - - - -
<br>> ><br>> > IPFIREwall ( <a href="http://www.giacomos.it/ipfire">http://www.giacomos.it/ipfire</a>) viene presentato<br>> > all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del<br>
> > Linux Day 2006:<br>> > <a href="http://iglu.cc.uniud.it/linuxday">http://iglu.cc.uniud.it/linuxday</a><br>> ><br>> > - - - - - - - - - - - - - - - - - - - - - -<br>> ><br>> > . '' `.
<br>> > : :' :<br>> > `. ` '<br>> > `- Debian GNU/Linux -- The power of freedom<br>> > <a href="http://www.debian.org">http://www.debian.org</a><br>> ><br>><br>>
<br>> --<br>> Giacomo S.<br>> <a href="http://www.giacomos.it">http://www.giacomos.it</a><br>><br>> - - - - - - - - - - - - - - - - - - - - - -<br>><br>> IPFIREwall (<a href="http://www.giacomos.it/ipfire">
http://www.giacomos.it/ipfire</a>) viene presentato<br>> all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del<br>> Linux Day 2006:<br>> <a href="http://iglu.cc.uniud.it/linuxday">http://iglu.cc.uniud.it/linuxday
</a><br>><br>> - - - - - - - - - - - - - - - - - - - - - -<br>><br>> . '' `.<br>> : :' :<br>> `. ` '<br>> `- Debian GNU/Linux -- The power of freedom<br>> <a href="http://www.debian.org">
http://www.debian.org</a><br>> _______________________________________________<br>> konsole-devel mailing list<br>> <a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br>> <a href="https://mail.kde.org/mailman/listinfo/konsole-devel">
https://mail.kde.org/mailman/listinfo/konsole-devel</a><br>><br>_______________________________________________<br>konsole-devel mailing list<br><a href="mailto:konsole-devel@kde.org">konsole-devel@kde.org</a><br><a href="https://mail.kde.org/mailman/listinfo/konsole-devel">
https://mail.kde.org/mailman/listinfo/konsole-devel</a><br></blockquote></div><br><br clear="all"><br>-- <br>Giacomo S.<br><a href="http://www.giacomos.it">http://www.giacomos.it</a><br> <br>- - - - - - - - - - - - - - - - - - - - - -
<br><br>IPFIREwall (<a href="http://www.giacomos.it/ipfire">http://www.giacomos.it/ipfire</a>) viene presentato <br>all'Universita` degli Studi di Udine, il 28 ottobre, in occasione del<br>Linux Day 2006:<br><a href="http://iglu.cc.uniud.it/linuxday">
http://iglu.cc.uniud.it/linuxday</a><br><br>- - - - - - - - - - - - - - - - - - - - - -<br><br> . '' `.<br>: :' :<br> `. ` '<br> `- Debian GNU/Linux -- The power of freedom<br> <a href="http://www.debian.org">
http://www.debian.org</a>