konqy preloading kills performance
Dario Massarin
nekkar at libero.it
Tue Dec 14 09:07:05 GMT 2004
On Tuesday 14 December 2004 12:17, Lubos Lunak wrote:
> On Monday 13 of December 2004 19:24, Alexander Neundorf wrote:
> > Hi,
> >
> > I am running KDE 3.2 on a PIII/450 MHz with 128 MB RAM.
> > Keeping konqy instances preloaded kills the performance on this box.
> > Reason: if I have a konqy with several tabs and visited a bunch of pages,
> > konqy grows to more than 50 MB in RAM ( or at least quite big), which
> > causes the box to swap. Now closing konqy doesn't help, since konqy
> > remains alive and doesn't free its memory. So I had to disable the
> > preloading to get the box working at reasonable speed again.
> > So IMHO preloading konqy slows the system on slow (ok, low memory)
> > systems
>
> Sorry, but "IMHO" doesn't count when it comes to performance. Do you have
> facts to support your humble opinion?
Hi Lubos. Maybe you will remember that on 27/06 I wrote to this list becouse I
noticed in konqueror the same behaviour.
This is what I have with:
#pmap 6238
(where 6238 is a closed konqueror that I have used to browse the web with
something like 30 tabs opened.
kdeinit: konqueror --preload(6238)
08048000 (36 KB) r-xp (03:03 1930814) /usr/kde/3.2/bin/kdeinit
08051000 (4 KB) rw-p (03:03 1930814) /usr/kde/3.2/bin/kdeinit
08052000 (46784 KB) rwxp (00:00 0)
40000000 (80 KB) r-xp (03:03 970583) /lib/ld-2.3.3.so
40014000 (4 KB) rw-p (03:03 970583) /lib/ld-2.3.3.so
40015000 (4 KB) rw-p (00:00 0)
40016000 (244 KB) r-xp (03:03
1928900) /usr/kde/3.2/lib/libkparts.so.2.1.0
40053000 (16 KB) rw-p (03:03
1928900) /usr/kde/3.2/lib/libkparts.so.2.1.0
40057000 (3084 KB) r-xp (03:03 1928889) /usr/kde/3.2/lib/libkio.so.4.2.0
4035a000 (112 KB) rw-p (03:03 1928889) /usr/kde/3.2/lib/libkio.so.4.2.0
40376000 (8 KB) rw-p (00:00 0)
40378000 (2096 KB) r-xp (03:03
1733046) /usr/kde/3.2/lib/libkdecore.so.4.2.0
40584000 (64 KB) rw-p (03:03
1733046) /usr/kde/3.2/lib/libkdecore.so.4.2.0
40594000 (8 KB) rw-p (00:00 0)
40596000 (6444 KB) r-xp (03:03 956209) /usr/qt/3/lib/libqt-mt.so.3.3.0
40be1000 (260 KB) rw-p (03:03 956209) /usr/qt/3/lib/libqt-mt.so.3.3.0
40c22000 (12 KB) rw-p (00:00 0)
40c25000 (68 KB) r-xp (03:03 1743575) /usr/X11R6/lib/libXft.so.2.1.2
40c36000 (4 KB) rw-p (03:03 1743575) /usr/X11R6/lib/libXft.so.2.1.2
40c37000 (136 KB) r-xp (03:03
1743568) /usr/X11R6/lib/libfontconfig.so.1.0.4
40c59000 (12 KB) rw-p (03:03
1743568) /usr/X11R6/lib/libfontconfig.so.1.0.4
40c5c000 (8 KB) rw-p (00:00 0)
40c5e000 (780 KB) r-xp (03:03 653286) /usr/X11R6/lib/libX11.so.6.2
40d21000 (16 KB) rw-p (03:03 653286) /usr/X11R6/lib/libX11.so.6.2
40d31000 (56 KB) r-xp (03:03 970421) /lib/libpthread-0.10.so
40d3f000 (4 KB) rw-p (03:03 970421) /lib/libpthread-0.10.so
40d40000 (264 KB) rw-p (00:00 0)
40d82000 (796 KB) r-xp (03:03
1903813) /usr/lib/gcc/i586-pc-linux-gnu/3.4.3/libstdc++.so.6.0.3
40e49000 (20 KB) rw-p (03:03
1903813) /usr/lib/gcc/i586-pc-linux-gnu/3.4.3/libstdc++.so.6.0.3
40e4e000 (20 KB) rw-p (00:00 0)
40e53000 (1192 KB) r-xp (03:03 970440) /lib/libc-2.3.3.so
40f7d000 (12 KB) rw-p (03:03 970440) /lib/libc-2.3.3.so
40f80000 (12 KB) rw-p (00:00 0)
40f83000 (2556 KB) r-xp (03:03
1743502) /usr/kde/3.2/lib/libkdeui.so.4.2.0
41202000 (164 KB) rw-p (03:03
1743502) /usr/kde/3.2/lib/libkdeui.so.4.2.0
4122b000 (4 KB) rw-p (00:00 0)
4122c000 (172 KB) r-xp (03:03 1928873) /usr/kde/3.2/lib/libDCOP.so.4.2.0
41257000 (4 KB) rw-p (03:03 1928873) /usr/kde/3.2/lib/libDCOP.so.4.2.0
41258000 (12 KB) rw-p (00:00 0)
4125b000 (96 KB) r-xp (03:03
1928883) /usr/kde/3.2/lib/libkdesu.so.4.2.0
41273000 (4 KB) rw-p (03:03
1928883) /usr/kde/3.2/lib/libkdesu.so.4.2.0
41274000 (56 KB) r-xp (03:03
1928885) /usr/kde/3.2/lib/libkwalletclient.so.1.0.1
41282000 (4 KB) rw-p (03:03
1928885) /usr/kde/3.2/lib/libkwalletclient.so.1.0.1
41283000 (64 KB) r-xp (03:03 1522484) /lib/libz.so.1.2.2
41293000 (4 KB) rw-p (03:03 1522484) /lib/libz.so.1.2.2
41294000 (28 KB) r-xp (03:03 781832) /usr/lib/libfam.so.0.0.0
4129b000 (4 KB) rw-p (03:03 781832) /usr/lib/libfam.so.0.0.0
4129c000 (32 KB) r-xp (03:03
1904025) /usr/lib/gcc/i586-pc-linux-gnu/3.4.3/libgcc_s.so.1
412a4000 (4 KB) rw-p (03:03
1904025) /usr/lib/gcc/i586-pc-linux-gnu/3.4.3/libgcc_s.so.1
412a5000 (96 KB) r-xp (03:03 680848) /usr/lib/libart_lgpl_2.so.2.3.16
412bd000 (4 KB) rw-p (03:03 680848) /usr/lib/libart_lgpl_2.so.2.3.16
412be000 (4 KB) rw-p (00:00 0)
412bf000 (156 KB) r-xp (03:03
1928880) /usr/kde/3.2/lib/libkdefx.so.4.2.0
412e6000 (8 KB) rw-p (03:03
1928880) /usr/kde/3.2/lib/libkdefx.so.4.2.0
412e8000 (8 KB) r-xp (03:03 970584) /lib/libdl-2.3.3.so
412ea000 (4 KB) rw-p (03:03 970584) /lib/libdl-2.3.3.so
412eb000 (28 KB) r-xp (03:03 1377994) /usr/X11R6/lib/libSM.so.6.0
412f2000 (4 KB) rw-p (03:03 1377994) /usr/X11R6/lib/libSM.so.6.0
412f3000 (80 KB) r-xp (03:03 653312) /usr/X11R6/lib/libICE.so.6.3
41307000 (8 KB) rw-p (03:03 653312) /usr/X11R6/lib/libICE.so.6.3
41309000 (4 KB) rw-p (00:00 0)
4130a000 (132 KB) r-xp (03:03 970582) /lib/libm-2.3.3.so
4132b000 (4 KB) rw-p (03:03 970582) /lib/libm-2.3.3.so
4132c000 (352 KB) r-xp (03:03 641540) /usr/lib/libmng.so.1.0.0
41384000 (12 KB) rw-p (03:03 641540) /usr/lib/libmng.so.1.0.0
41387000 (4 KB) rw-p (00:00 0)
41388000 (128 KB) r-xp (03:03 641577) /usr/lib/libjpeg.so.62.0.0
413a8000 (4 KB) rw-p (03:03 641577) /usr/lib/libjpeg.so.62.0.0
413a9000 (188 KB) r-xp (03:03 581286) /usr/lib/libpng.so.3.1.2.5
413d8000 (4 KB) rw-p (03:03 581286) /usr/lib/libpng.so.3.1.2.5
413d9000 (28 KB) r-xp (03:03 653569) /usr/X11R6/lib/libXi.so.6.0
413e0000 (4 KB) rw-p (03:03 653569) /usr/X11R6/lib/libXi.so.6.0
413e1000 (28 KB) r-xp (03:03
1743561) /usr/X11R6/lib/libXrender.so.1.2.2
413e8000 (4 KB) rw-p (03:03
1743561) /usr/X11R6/lib/libXrender.so.1.2.2
413e9000 (12 KB) r-xp (03:03 653401) /usr/X11R6/lib/libXrandr.so.2.0
413ec000 (4 KB) rw-p (03:03 653401) /usr/X11R6/lib/libXrandr.so.2.0
413ed000 (32 KB) r-xp (03:03
1743586) /usr/X11R6/lib/libXcursor.so.1.0.2
413f5000 (4 KB) rw-p (03:03
1743586) /usr/X11R6/lib/libXcursor.so.1.0.2
413f6000 (4 KB) rw-p (00:00 0)
413f7000 (416 KB) r-xp (03:03 495557) /usr/lib/libfreetype.so.6.3.4
4145f000 (28 KB) rw-p (03:03 495557) /usr/lib/libfreetype.so.6.3.4
41466000 (52 KB) r-xp (03:03 1378019) /usr/X11R6/lib/libXext.so.6.4
41473000 (4 KB) rw-p (03:03 1378019) /usr/X11R6/lib/libXext.so.6.4
41474000 (688 KB) r-xp (03:03
704992) /usr/lib/gcc-lib/i586-pc-linux-gnu/3.3.2/libstdc++.so.5.0.5
41520000 (20 KB) rw-p (03:03
704992) /usr/lib/gcc-lib/i586-pc-linux-gnu/3.3.2/libstdc++.so.5.0.5
41525000 (20 KB) rw-p (00:00 0)
4152a000 (140 KB) r-xp (03:03 496844) /usr/lib/libexpat.so.0.5.0
4154d000 (8 KB) rw-p (03:03 496844) /usr/lib/libexpat.so.0.5.0
4154f000 (8 KB) rw-p (00:00 0)
41551000 (500 KB) r-xp (03:03 1748742) /usr/kde/3.2/lib/libkonq.so.4.2.0
415ce000 (20 KB) rw-p (03:03 1748742) /usr/kde/3.2/lib/libkonq.so.4.2.0
415d3000 (2048 KB) r--p (03:03 970642) /usr/lib/locale/locale-archive
417d3000 (1072 KB) r--p (03:03 970642) /usr/lib/locale/locale-archive
418df000 (4 KB) r--p (03:03 970642) /usr/lib/locale/locale-archive
418e0000 (24 KB) r--s (03:03
735470) /usr/lib/gconv/gconv-modules.cache
418e6000 (4 KB) r-xp (03:03
653306) /usr/X11R6/lib/X11/locale/lib/common/xlcUTF8Load.so.2
418e7000 (4 KB) rw-p (03:03
653306) /usr/X11R6/lib/X11/locale/lib/common/xlcUTF8Load.so.2
418e8000 (104 KB) r-xp (03:03
654419) /usr/X11R6/lib/X11/locale/lib/common/ximcp.so.2
41902000 (8 KB) rw-p (03:03
654419) /usr/X11R6/lib/X11/locale/lib/common/ximcp.so.2
41904000 (4 KB) r-xp (03:03
1929656) /usr/kde/3.2/lib/kde3/konqueror.so
41905000 (4 KB) rw-p (03:03
1929656) /usr/kde/3.2/lib/kde3/konqueror.so
41906000 (708 KB) r-xp (03:03
1929655) /usr/kde/3.2/lib/libkdeinit_konqueror.so
419b7000 (32 KB) rw-p (03:03
1929655) /usr/kde/3.2/lib/libkdeinit_konqueror.so
419bf000 (396 KB) r-xp (03:03
1756215) /usr/kde/3.2/lib/libkutils.so.1.2.0
41a22000 (20 KB) rw-p (03:03
1756215) /usr/kde/3.2/lib/libkutils.so.1.2.0
41a27000 (36 KB) r--p (03:03
970361) /usr/share/locale/it/LC_MESSAGES/libc.mo
41a30000 (8 KB) r-xp (03:03 968180) /usr/lib/gconv/ISO8859-1.so
41a32000 (4 KB) rw-p (03:03 968180) /usr/lib/gconv/ISO8859-1.so
41a33000 (136 KB) r--p (03:03
1077257) /usr/kde/3.2/share/locale/it/LC_MESSAGES/kdelibs.mo
41a61000 (100 KB) r-xp (03:03
1745347) /usr/kde/3.2/lib/kde3/plugins/styles/plastik.so
41a7a000 (4 KB) rw-p (03:03
1745347) /usr/kde/3.2/lib/kde3/plugins/styles/plastik.so
41a7b000 (1048 KB) r--s (03:03 1559807) /var/tmp/kdecache-dario/ksycoca
41b81000 (128 KB) rw-p (00:00 0)
41bad000 (8 KB) r--p (03:03
655437) /usr/X11R6/lib/X11/fonts/75dpi/helvR14-ISO8859-1.pcf.gz
41baf000 (24 KB) r-xp (03:03
1440863) /usr/kde/3.2/lib/kde3/libautorefresh.so
41bb5000 (4 KB) rw-p (03:03
1440863) /usr/kde/3.2/lib/kde3/libautorefresh.so
41bc2000 (8 KB) r-xp (03:03 681515) /usr/lib/libpcreposix.so.0.0.0
41bc4000 (4 KB) rw-p (03:03 681515) /usr/lib/libpcreposix.so.0.0.0
41bc5000 (60 KB) r-xp (03:03 970441) /lib/libresolv-2.3.3.so
41bd4000 (4 KB) rw-p (03:03 970441) /lib/libresolv-2.3.3.so
41bd5000 (8 KB) rw-p (00:00 0)
41bd7000 (8 KB) r-xp (03:03 970463) /lib/libutil-2.3.3.so
41bd9000 (4 KB) rw-p (03:03 970463) /lib/libutil-2.3.3.so
41bde000 (28 KB) r-xp (03:03 970621) /lib/libnss_compat-2.3.3.so
41be5000 (4 KB) rw-p (03:03 970621) /lib/libnss_compat-2.3.3.so
41be6000 (72 KB) r-xp (03:03 970439) /lib/libnsl-2.3.3.so
41bf8000 (4 KB) rw-p (03:03 970439) /lib/libnsl-2.3.3.so
41bf9000 (8 KB) rw-p (00:00 0)
41bfb000 (32 KB) r-xp (03:03 970454) /lib/libnss_nis-2.3.3.so
41c03000 (4 KB) rw-p (03:03 970454) /lib/libnss_nis-2.3.3.so
41c04000 (32 KB) r-xp (03:03 970275) /lib/libnss_files-2.3.3.so
41c0c000 (4 KB) rw-p (03:03 970275) /lib/libnss_files-2.3.3.so
41c0d000 (4 KB) r-xp (03:03
1928597) /usr/kde/3.2/lib/kde3/libkhtmlpart.so
41c0e000 (4 KB) rw-p (03:03
1928597) /usr/kde/3.2/lib/kde3/libkhtmlpart.so
41c0f000 (3096 KB) r-xp (03:03
1928557) /usr/kde/3.2/lib/libkhtml.so.4.2.0
41f15000 (140 KB) rw-p (03:03
1928557) /usr/kde/3.2/lib/libkhtml.so.4.2.0
41f38000 (360 KB) r-xp (03:03 1928884) /usr/kde/3.2/lib/libkjs.so.1.2.0
41f92000 (20 KB) rw-p (03:03 1928884) /usr/kde/3.2/lib/libkjs.so.1.2.0
41f97000 (4 KB) rw-p (00:00 0)
41f98000 (696 KB) r-xp (03:03
1928942) /usr/kde/3.2/lib/libkdeprint.so.4.2.0
42046000 (32 KB) rw-p (03:03
1928942) /usr/kde/3.2/lib/libkdeprint.so.4.2.0
4205a000 (60 KB) r-xp (03:03 681380) /usr/lib/libpcre.so.0.0.1
42069000 (4 KB) rw-p (03:03 681380) /usr/lib/libpcre.so.0.0.1
4206a000 (128 KB) rw-p (00:00 0)
4208e000 (28 KB) r-xp (03:03
1440166) /usr/kde/3.2/lib/kde3/libcrashesplugin.so
42095000 (4 KB) rw-p (03:03
1440166) /usr/kde/3.2/lib/kde3/libcrashesplugin.so
42097000 (60 KB) r-xp (03:03
1722282) /usr/kde/3.2/lib/kde3/khtml_kget.so
420a6000 (8 KB) rw-p (03:03
1722282) /usr/kde/3.2/lib/kde3/khtml_kget.so
420a8000 (8 KB) r-xp (03:03 1743558) /usr/X11R6/lib/libXinerama.so.1.0
420aa000 (4 KB) rw-p (03:03 1743558) /usr/X11R6/lib/libXinerama.so.1.0
420b2000 (32 KB) r-xp (03:03
1440526) /usr/kde/3.2/lib/kde3/libminitoolsplugin.so
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1440526) /usr/kde/3.2/lib/kde3/libminitoolsplugin.so
420d6000 (36 KB) r-xp (03:03
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1440416) /usr/kde/3.2/lib/kde3/libkhtmlsettingsplugin.so
420e0000 (32 KB) r-xp (03:03
1440360) /usr/kde/3.2/lib/kde3/libbabelfishplugin.so
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1440360) /usr/kde/3.2/lib/kde3/libbabelfishplugin.so
420e9000 (72 KB) r-xp (03:03
1440540) /usr/kde/3.2/lib/kde3/libdomtreeviewerplugin.so
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1440540) /usr/kde/3.2/lib/kde3/libdomtreeviewerplugin.so
420fc000 (52 KB) r-xp (03:03
1441088) /usr/kde/3.2/lib/kde3/libvalidatorsplugin.so
42109000 (4 KB) rw-p (03:03
1441088) /usr/kde/3.2/lib/kde3/libvalidatorsplugin.so
4210a000 (100 KB) r-xp (03:03
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1441033) /usr/kde/3.2/lib/kde3/libwebarchiverplugin.so
42124000 (48 KB) r-xp (03:03
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42131000 (16 KB) r--p (03:03
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42135000 (32 KB) r-xp (03:03
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1929663) /usr/kde/3.2/lib/kde3/konqsidebar_tree.so
42485000 (8 KB) rw-p (03:03
1929663) /usr/kde/3.2/lib/kde3/konqsidebar_tree.so
42487000 (136 KB) r-xp (03:03
1929626) /usr/kde/3.2/lib/kde3/konq_sidebartree_history.so
424a9000 (8 KB) rw-p (03:03
1929626) /usr/kde/3.2/lib/kde3/konq_sidebartree_history.so
424b2000 (104 KB) r-xp (03:03
751272) /usr/kde/3.2/lib/kde3/libnsplugin.so
424cc000 (8 KB) rw-p (03:03
751272) /usr/kde/3.2/lib/kde3/libnsplugin.so
424e5000 (204 KB) r--p (03:03
660982) /usr/X11R6/lib/X11/fonts/truetype/ariali.ttf
42590000 (152 KB) r--p (03:03 1178066) /home/dario/.fonts/verdana0.ttf
42628000 (108 KB) r-xp (03:03
1929634) /usr/kde/3.2/lib/kde3/konq_sidebar.so
42643000 (8 KB) rw-p (03:03
1929634) /usr/kde/3.2/lib/kde3/konq_sidebar.so
42645000 (12 KB) r-xp (03:03
1929628) /usr/kde/3.2/lib/libkonqsidebarplugin.so.1.2.0
42648000 (4 KB) rw-p (03:03
1929628) /usr/kde/3.2/lib/libkonqsidebarplugin.so.1.2.0
bfff0000 (64 KB) rwxp (00:00 0)
ffffe000 (4 KB) ---p (00:00 0)
mapped: 84144 KB writable/private: 50208 KB shared: 1072 KB
What makes me think that the problem is not related to the memory used by
shared libraries, is the 3rd line:
08052000 (46784 KB) rwxp (00:00 0)
Is this shared memory?
A "fresh" konqueror seems, in fact, to show a different number:
0804a000 (3440 KB) rwxp (00:00 0)
And the last line of the output is:
mapped: 32096 KB writable/private: 4996 KB shared: 1072 KB
I hope these numbers can be useful.
Cheers,
Dario
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