From kde-devel Fri Jul 17 11:28:58 2009 From: dunsens () web ! de Date: Fri, 17 Jul 2009 11:28:58 +0000 To: kde-devel Subject: Re: KDE4 is a memory hog Message-Id: <200907171328.58875.dunsens () web ! de> X-MARC-Message: https://marc.info/?l=kde-devel&m=124783023830529 Am Freitag, 17. Juli 2009 schrieb Carlo: > On Fri, Jul 17, 2009 at 11:45 AM, wrote: > > Hi, > > > > I have now tried, stepped ahead and installed 4.2.4 on my machines > > (debian- desktop.org backports). I have to say that I am quite pleased. > > Since the PS3 has a fast swap it is actually capable of running KDE4 > > sessions. The C3 feels slow, but 512mb seem enough. KWin crashes with my > > default settings for openchrome via driver though, so i had to disable > > the composite extension. The PS3 feels a bit sluggish, but it does not > > really get in your way. You can run Kopete + Firefox + amarok (1.4). This > > is really o.k. (No youtube of course, shame at adobe). > > I can also login 3 sessions with an typical work environment on the 1gb > > ram machines. I get 100-200mb swapping then, but I guess that 4.3 will > > improve that due to the nvidia issue. > > > > Things that I have seen testing with exmap/valgrind --massif: > > > > -Fonts can make a huge difference. Parts of my high memory usage seem to > > be related to using "Free Sans". I am at DejaVu Sans now and it is > > better. Dolphin shows high heap usage related to libfreetype for example. > > But it is not really gone - Konsole uses 7mb heap for a one bash tab: > > 91.09% (6,792,796B) (heap allocation functions) malloc/new/new[], > > --alloc-fns, etc. > > ->44.73% (3,335,865B) 0x5CCDCEC: (within /usr/lib/libfreetype.so.6.3.18) > > > > | ->44.73% (3,335,865B) 0x5CD1EBA: ft_mem_qalloc (in > > > > /usr/lib/libfreetype.so.6.3.18) > > > > | ->44.73% (3,335,865B) 0x5CD3B72: ft_mem_alloc (in > > > > /usr/lib/libfreetype.so.6.3.18) > > > > -Konqueror really is a memory hog although it seems to not be. It uses > > more memory on the same three tabs/sites test setup than firefox, > > although exmap even calculates the shared lib usage where it should have > > a great advantage. This is bad since Firefox has not nearly a as good kde > > integration. > > > > -Kopete takes too much memory. It has a total memory of between 20-24mb > > here, having 12mb heap: > > 85.80% (10,692,856B) (heap allocation functions) malloc/new/new[], > > --alloc- fns, etc. > > ->24.69% (3,077,240B) 0x4F67DCC: qMalloc(unsigned) (in > > /usr/lib/libQtCore.so.4.4.3) > > > > | ->07.87% (981,434B) 0x4FB1AB8: QString::realloc(int) (in > > > > /usr/lib/libQtCore.so.4.4.3) > > Don't know why, but I guess that could be better... Maybe it is due to > > the emoticons being cached... > > > > -Akonadi takes round about 30 mb. I just kill it if I need to. The always > > on startup message about migrating the standard ressources gets on my > > nerves, too, btw.... > > > > -Amarok really uses between 60-70 mb on kubuntu here. This does not mean > > much as heaps seem to be generally larger on kubuntu for some reason. But > > 70 mb is really bad. > > > > I am happy to be able to use KDE4 on my systems now and I am looking > > forward to use 4.3/4.4. It is really the most advanced *nix desktop imo, > > so thx for your great work! > > > > Cheers, > > whilo > > the PS3 is slugghish because there are just 256mb of ram, and you > can't use the SPEs for general purpose, so it's just a single core PPE > with something like hyper threading it is even less. it is only round about 200mb. it still works. and you can now use the graphics memory as a fast swap space, which i do. so you can use it. you are right about cpu power though... hopefully the spes will work for graphics acceleration sometime in the future. but I'm ok with the current situation. > > >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to > >> unsubscribe << -- My blog: http://whilos.blogsite.org No brain - no headache! >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to unsubscribe <<