I am looking at the process listing in gnome-system-monitor. Acording to it I have four apache2 processes, namely: 11087, VM size 234.7 MB 11085, VM size 234.7 MB 11031, VM size 17.0 MB 11030, VM size 18.6 MB However, I also have: obelix@home ~ $ ps aux | head -n 1; ps aux | grep apache2 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 11030 0.0 0.7 19020 7400 ? Ss 16:58 0:00 /usr/sbin/apache2 -D SSL -D PHP5 -d /usr/lib/apache2 -f /etc/apache2/httpd.conf -k start apache 11031 0.0 0.5 17380 5224 ? S 16:58 0:00 /usr/sbin/apache2 -D SSL -D PHP5 -d /usr/lib/apache2 -f /etc/apache2/httpd.conf -k start apache 11085 0.0 0.7 240312 7552 ? Sl 16:58 0:00 /usr/sbin/apache2 -D SSL -D PHP5 -d /usr/lib/apache2 -f /etc/apache2/httpd.conf -k start apache 11087 0.0 0.7 240312 7548 ? Sl 16:58 0:00 /usr/sbin/apache2 -D SSL -D PHP5 -d /usr/lib/apache2 -f /etc/apache2/httpd.conf -k start obelix 13690 0.0 0.0 2760 680 pts/3 R+ 17:29 0:00 grep apache2 11085 and 11087 use 0.7 of the memory, the memory being 1GB, that means each uses about 8MB. Yet gnome-system-monitor shows 234.7 MB, orders of magnitude larger. Am I interpreting the information wrongly or is this a gnome-system-monitor bug ? Reproducible: Always Steps to Reproduce: 1./etc/init.d/apache2 start 2.start gnome-system-monitor 3.watch apache memory usage 4.ps aux | grep apache2 5.compare VM size. Actual Results: Results differ wildly. Expected Results: They should be exactly the same. Portage 2.0.51.22-r1 (default-linux/x86/2005.0, gcc-3.4.3-20050110, glibc-2.3.5-r0, 2.6.11-gentoo-r9 i686) ================================================================= System uname: 2.6.11-gentoo-r9 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz Gentoo Base System version 1.6.12 dev-lang/python: 2.3.5 sys-apps/sandbox: 1.2.8 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r9 sys-devel/libtool: 1.5.18 virtual/os-headers: 2.6.11 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-g0 -O2 -march=pentium4 -mtune=pentium4 -msse2 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer -funit-at-a-time -ftracer -mfpmath=sse" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-g0 -O2 -march=pentium4 -mtune=pentium4 -msse2 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer -funit-at-a-time -ftracer -mfpmath=sse -fvisibility-inlines-hidden" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://gentoo.ITDNet.net/gentoo" LANG="en_US.utf8" LC_ALL="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--strip-all" LINGUAS="en" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X aac acl acpi alsa apache2 avi bash-completion berkdb bitmap-fonts bonobo cdr crypt cups curl doc dvd dvdr eds emboss encode flac foomaticdb gd gdbm gif gnome gpm gstreamer gtk gtk2 guile hal howl imagemagick imlib ipv6 ithreads java jpeg junit kde kdeenablefinal ldap libg++ libwww mad mikmod mmap mmx motif mozilla mp3 mpeg mysql ncurses nls nptl nvidia ogg oggvorbis opengl pam pdflib perl pic plotutils png postgres pthreads python qt quicktime readline sdl session sharedmem slang spell sse sse2 ssl svga symlink tcltk tcpd tetex threads tiff truetype truetype-fonts type1-fonts unicode usb vorbis xml xml2 xv zlib linguas_en userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET
VM size is the collumn VSZ in the ps output. You should look at the detailed process info in g-s-m to see what amount is really not shared mem. You can change the columns displayed in g-s-m trough preferences and get info more to your liking. I don't think this is a bug, just misunderstanding of the meaning of different info.
I see... Thanks for the explanation.
