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List: kde-devel
Subject: Re: kde, xfree & RAM
From: Lubos Lunak <l.lunak () suse ! cz>
Date: 2004-06-11 13:40:45
Message-ID: 200406111540.45643.l.lunak () suse ! cz
[Download RAW message or body]
On Thursday 10 of June 2004 23:20, Waldo Bastian wrote:
> On Thu June 10 2004 16:15, M. Fioretti wrote:
> > It really looks like you are asking for this:
> >
> > http://www.rule-project.org/article.php3?id_article=59
> >
> > doesn't it? Or, at the very least, that every answer to the questions
> > below is relevant to that page, and we at RULE would really love to
> > help with this. If nothing else, by testing, and documenting
> > everything on this "make kde really light" issue.
> >
> > What do you think? And what can KDE developers suggest on this?
>
> Start with making some good tools to visualize which memory is used for
> what, e.g. how many code pages are in use by a certain library, how many
> data pages are in use by each process, how many pages are actually shared
> and by which processes, how much memory is the kernel using and for which
> tasks.
>
> It may also be interesting to relate memory usage in the X-server with the
> actual applications. I believe there are tools for that already.
xrestop
>
> Once you are able to account somewhat accurately for all the memory in a
> system you will be able to identify problem spots and I'm sure that a lot
> of people will then be interested in solving such problem areas.
Using kdesdk/kmtrace (from CVS HEAD) or memprof can help with allocations
done by application.
With memprof it's just 'memprof -- app args', and it has GUI, but I
personally find kmtrace better, although slightly more difficult to use (and
it has some features which are actually not documented :-/ , I wonder if
there's a person who knows what all it can do ).
For example the attached file is a tree of allocations after kwrite starts
up. Done using LD_PRELOAD as the README says and used --tree --th with
kmtrace. Although one can start and stop logging the allocations directly
from the app if linked against libktrace, there's no simple way how to do the
dump with LD_PRELOAD, so I had to attach gdb and do 'call kuntrace()'. Would
be nice if there was some GUI for it.
BTW, if you look at the tree (left number size allocated, right number number
of allocations), pay special attention to Xft+fontconfig+freetype allocating
more than 0.6 MiB and XIM about 0.35 MiB for something that's most probably
the same data all the time. Do the maths yourself.
--
Lubos Lunak
KDE developer
---------------------------------------------------------------------
SuSE CR, s.r.o. e-mail: l.lunak@suse.cz , l.lunak@kde.org
Drahobejlova 27 tel: +420 2 9654 2373
190 00 Praha 9 fax: +420 2 9654 2374
Czech Republic http://www.suse.cz/
["tr3.txt" (text/plain)]
+- 2886068/79407 libc.so.6(__libc_start_main+0xe0)[0x41539500]
\+- 2886068/79407 ??:0(main)[0x080486de]
++- 1605329/41372 libkdeinit_kwrite.so(kdemain+0xbce)[0x401d8cae]
|++- 951797/22701 libkdeinit_kwrite.so(KWrite::KWrite(KTextEditor::Document*)+0x462)[0x401d7cb2]
||\+- 949693/22608 \
libktexteditor.so.0(KTextEditor::EditorChooser::createDocument(QObject*, char const*, \
QString const&, bool)+0x13f)[0x4021e81f] || \+- 903634/22213 \
libktexteditor.so.0(KTextEditor::createDocument(char const*, QObject*, char \
const*)+0xcb)[0x4021e62b] || \+- 903546/22208 \
libkparts.so.2(KParts::Factory::createPart(QWidget*, char const*, QObject*, char \
const*, char const*, QStringList const&)+0x4f)[0x4024ff7f] || ++- 601125/8806 \
libkatepart.so(KateFactoryPublic::createPartObject(QWidget*, char const*, QObject*, \
char const*, char const*, QStringList const&)+0x17)[0x41b7ced7] || |\+- \
600905/8804 libkatepart.so(KateFactory::self()+0x4b)[0x41b16e7b] || | \+- \
564084/7587 libkatepart.so(KateFactory::KateFactory()+0x789)[0x41b16d49] || | \+- \
471821/7440 libkatepart.so(KateRendererConfig::KateRendererConfig()+0x46)[0x41b19656] \
|| | \+- 471821/7440 libkatepart.so(FontStruct::FontStruct()+0xba)[0x41aebfea] \
|| | \+- 471821/7440 \
libkatepart.so(FontStruct::updateFontData()+0x28)[0x41aea708] || | \+- \
471821/7440 libqt-mt.so.3(QFontMetrics::ascent() const+0x43)[0x40ce2193] || | \
\+- 470237/7438 libqt-mt.so.3(QFontPrivate::load(QFont::Script)+0x52a)[0x40c778fa] \
|| | +- 315583/7282 libqt-mt.so.3(QFontDatabase::findFont(QFont::Script, \
QFontPrivate const*, QFontDef const&, int)+0x1d5)[0x40cf1cd5] || | \+- \
153670/139 libqt-mt.so.3(QFontDatabase::findFont(QFont::Script, QFontPrivate const*, \
QFontDef const&, int)+0xe1d)[0x40cf291d] || | \+- 146414/61 \
libqt-mt.so.3[0x40cec76c] || | \+- 146324/60 \
libXft.so.2(XftFontOpenPattern+0x4a)[0x411bb25a] || | \+- 111896/59 \
libXft.so.2(XftFontOpenInfo+0xef)[0x411bad1f] || | \+- 111896/59 \
libXft.so.2[0x411ba794] || | \+- 111896/59 \
libfreetype.so.6(FT_New_Face+0x48)[0x41221ce8] || | \+- 111596/53 \
libfreetype.so.6(FT_Open_Face+0x196)[0x41220fa6] || | \- 111216/51 \
libfreetype.so.6[0x412207cf] || \+- 302421/13402 \
libkatepart.so(KateFactoryPublic::createPartObject(QWidget*, char const*, QObject*, \
char const*, char const*, QStringList const&)+0x49)[0x41b7cf09] || \+- \
301473/13401 libkatepart.so(KateFactory::createPartObject(QWidget*, char const*, \
QObject*, char const*, char const*, QStringList const&)+0x13a)[0x41b6c39a] || \
\+- 236279/10226 libkatepart.so(KateDocument::KateDocument(bool, bool, bool, \
QWidget*, char const*, QObject*, char const*)+0xa36)[0x41b6bf96] || \+- \
236247/10225 libkatepart.so(KateDocument::internalSetHlMode(unsigned \
int)+0x22)[0x41b59452] || \+- 236047/10223 \
libkatepart.so(HlManager::self()+0x4b)[0x41b0c20b] || \+- 136857/6738 \
libkatepart.so(HlManager::HlManager()+0xd7)[0x41b0bc27] || \+- 136510/6726 \
libkdecore.so.4(KConfig::KConfig(QString const&, bool, bool, char \
const*)+0xa1)[0x4097fe11] || \+- 136412/6721 \
libkdecore.so.4(KConfig::reparseConfiguration()+0x134)[0x408e9554] || \+- \
136397/6719 libkdecore.so.4(KConfigBase::parseConfigFiles()+0x48)[0x409704d8] || \
\- 136397/6719 libkdecore.so.4(KConfigINIBackEnd::parseConfigFiles()+0x28a)[0x4097ee5a]
|++- 306650/7502 libkdeinit_kwrite.so(KWrite::KWrite(KTextEditor::Document*)+0x12b)[0x401d797b]
||\- 306226/7498 libkatepart.so(KateDocument::createView(QWidget*, char \
const*)+0x45)[0x41b6b525] |++- 144581/5117 \
libkdeinit_kwrite.so(KWrite::KWrite(KTextEditor::Document*)+0x284)[0x401d7ad4] ||\+- \
143580/5074 libkdeui.so.4(KXMLGUIFactory::addClient(KXMLGUIClient*)+0x360)[0x407a3650]
|| \+- 143580/5074 libkdeui.so.4(KXMLGUI::BuildHelper::build(QDomElement \
const&)+0x5f)[0x4070298f] || \+- 143580/5074 \
libkdeui.so.4(KXMLGUI::BuildHelper::processElement(QDomElement \
const&)+0x273)[0x40702893] || \+- 143580/5074 \
libkdeui.so.4(KXMLGUI::BuildHelper::processContainerElement(QDomElement const&, \
QString const&, QString const&)+0x8e)[0x40702a7e] || \+- 143580/5074 \
libkdeui.so.4(KXMLGUI::BuildHelper::build(QDomElement const&)+0x5f)[0x4070298f] || \
\+- 107519/3681 libkdeui.so.4(KXMLGUI::BuildHelper::processElement(QDomElement \
const&)+0x273)[0x40702893] || \+- 105896/3626 \
libkdeui.so.4(KXMLGUI::BuildHelper::processContainerElement(QDomElement const&, \
QString const&, QString const&)+0x8e)[0x40702a7e] || \- 105896/3626 \
libkdeui.so.4(KXMLGUI::BuildHelper::build(QDomElement const&)+0x5f)[0x4070298f] |\- \
113431/3866 libkdeinit_kwrite.so(KWrite::KWrite(KTextEditor::Document*)+0x261)[0x401d7ab1]
\+- 1216824/36597 libkdeinit_kwrite.so(kdemain+0x6e5)[0x401d87c5]
++- 1085088/31964 libkdecore.so.4(KApplication::KApplication(bool, \
bool)+0x4e)[0x409cbb3e] |\+- 1085076/31963 \
libqt-mt.so.3(QApplication::QApplication(int&, char**, bool)+0x70)[0x40cce810] | \+- \
1075148/31881 libqt-mt.so.3(QApplication::construct(int&, char**, \
QApplication::Type)+0x78)[0x40cce4a8] | \+- 1075148/31881 \
libqt-mt.so.3(qt_init(int*, char**, QApplication::Type)+0x36)[0x40c62e96] | ++- \
527337/4641 libqt-mt.so.3(qt_init_internal(int*, char**, _XDisplay*, unsigned long, \
unsigned long)+0x1bd4)[0x40c61c54] | |\+- 527325/4640 \
libXft.so.2(XftInit+0x3b)[0x411b8fab] | | \+- 527325/4640 \
libfontconfig.so.1(FcInit+0x2c)[0x411d6f1c] | | \+- 513150/3600 \
libfontconfig.so.1(FcInitLoadConfigAndFonts+0x2c)[0x411d6e1c] | | \+- \
513138/3599 libfontconfig.so.1(FcConfigBuildFonts+0x87)[0x411d1037] | | \+- \
502711/3561 libfontconfig.so.1(FcDirScanConfig+0x68)[0x411d4328] | | \+- \
502711/3561 libfontconfig.so.1(FcDirCacheReadDir+0x13c)[0x411cd88c] | | \+- \
407282/3158 libfontconfig.so.1[0x411cd64e] | | ++- 268826/1052 \
libfontconfig.so.1(FcPatternFreeze+0x26c)[0x411dc94c] | | |\+- 268826/1052 \
libc.so.6(malloc+0x35)[0x415882e5] | | | \- 268826/1052 \
libktrace.so[0x400190f9] | | \+- 135519/1999 \
libfontconfig.so.1(FcPatternFreeze+0x350)[0x411dca30] | | \+- 135519/1999 \
libc.so.6(malloc+0x35)[0x415882e5] | | \- 135519/1999 \
libktrace.so[0x400190f9] | \+- 374582/23571 libqt-mt.so.3(qt_init_internal(int*, \
char**, _XDisplay*, unsigned long, unsigned long)+0x11c6)[0x40c61246] | \+- \
374582/23571 libX11.so.6(XRegisterIMInstantiateCallback+0x58)[0x4130fb38] | \+- \
373738/23566 libX11.so.6[0x4134178d] | \+- 325236/23229 \
ximcp.so.2(_XimRegisterIMInstantiateCallback+0x11e)[0x4169e3ce] | \+- \
325236/23229 libqt-mt.so.3[0x40c638c7] | \+- 325236/23229 \
libqt-mt.so.3(QApplication::create_xim()+0x34)[0x40c63674] | \+- \
325236/23229 libX11.so.6(XOpenIM+0x4a)[0x4130fb8a] | \+- 325236/23229 \
libX11.so.6[0x4134189b] | \+- 325014/23227 \
ximcp.so.2(_XimOpenIM+0x264)[0x4169e784] | \+- 323770/23205 \
ximcp.so.2(_XimLocalOpenIM+0x27e)[0x4169f67e] | \+- 237816/6606 \
ximcp.so.2(_XimParseStringFile+0xb3c)[0x416a123c] | \+- 237816/6606 \
libc.so.6(malloc+0x35)[0x415882e5] | \- 237816/6606 \
libktrace.so[0x400190f9] \- 131427/4616 \
libkdecore.so.4(KApplication::KApplication(bool, bool)+0x221)[0x409cbd11]
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