{"id":319,"date":"2008-06-22T01:09:03","date_gmt":"2008-06-21T22:09:03","guid":{"rendered":"http:\/\/www.void.gr\/kargig\/blog\/?p=319"},"modified":"2009-05-03T13:14:40","modified_gmt":"2009-05-03T10:14:40","slug":"the-quest-for-a-better-rxvt-unicode-on-gentoo","status":"publish","type":"post","link":"https:\/\/www.void.gr\/kargig\/blog\/2008\/06\/22\/the-quest-for-a-better-rxvt-unicode-on-gentoo\/","title":{"rendered":"The quest for a better rxvt-unicode on Gentoo"},"content":{"rendered":"

Today, while studying I decided to manually run a prelink<\/a> on my system. For no good reason. Just boredom I guess. The results were pretty interesting though.<\/p>\n

Among the output there was a line that made a very big impression to me.
\nprelink: \/usr\/bin\/urxvt: Cannot prelink against non-PIC shared library \/\/usr\/\/lib\/opengl\/nvidia\/lib\/libGL.so.1<\/code>
\nWhy oh why is libGL.so.1 inside the shared libraries of a terminal ???
\n
\nI decided to take a closer look to the urxvt executable.
\n# ldd \/usr\/bin\/urxvt
\n\tlinux-gate.so.1 => (0xffffe000)
\n\tlibXft.so.2 => \/usr\/lib\/libXft.so.2 (0x45df1000)
\n\tlibXrender.so.1 => \/usr\/lib\/libXrender.so.1 (0x43839000)
\n\tlibfontconfig.so.1 => \/usr\/lib\/libfontconfig.so.1 (0x45f4b000)
\n\tlibX11.so.6 => \/usr\/lib\/libX11.so.6 (0x4b995000)
\n\tlibAfterImage.so.0 => \/usr\/lib\/libAfterImage.so.0 (0x4f62d000)
\n\tlibperl.so.1 => \/usr\/lib\/libperl.so.1 (0x43a60000)
\n\tlibpthread.so.0 => \/lib\/libpthread.so.0 (0x4c408000)
\n\tlibdl.so.2 => \/lib\/libdl.so.2 (0x4c2f4000)
\n\tlibc.so.6 => \/lib\/libc.so.6 (0x4c19a000)
\n\t\/lib\/ld-linux.so.2 (0x4c17c000)
\n\tlibgcc_s.so.1 => \/usr\/lib\/gcc\/i686-pc-linux-gnu\/4.1.2\/libgcc_s.so.1 (0x4c52f000)
\n\tlibfreetype.so.6 => \/usr\/lib\/libfreetype.so.6 (0x46414000)
\n\tlibz.so.1 => \/lib\/libz.so.1 (0x4368c000)
\n\tlibexpat.so.1 => \/usr\/lib\/libexpat.so.1 (0x4c4b1000)
\n\tlibXau.so.6 => \/usr\/lib\/libXau.so.6 (0x4cda8000)
\n\tlibXdmcp.so.6 => \/usr\/lib\/libXdmcp.so.6 (0x4c401000)
\n\tlibrsvg-2.so.2 => \/usr\/lib\/librsvg-2.so.2 (0x4bb34000)
\n\tlibgdk_pixbuf-2.0.so.0 => \/usr\/lib\/libgdk_pixbuf-2.0.so.0 (0x4afc4000)
\n\tlibgobject-2.0.so.0 => \/usr\/lib\/libgobject-2.0.so.0 (0x4af3a000)
\n\tlibGL.so.1 => \/\/usr\/\/lib\/opengl\/nvidia\/lib\/libGL.so.1 (0x4bbb8000)
\n\tlibm.so.6 => \/lib\/libm.so.6 (0x4c2cc000)
\n\tlibnsl.so.1 => \/lib\/libnsl.so.1 (0x4cc4e000)
\n\tlibcrypt.so.1 => \/lib\/libcrypt.so.1 (0x4cc8c000)
\n\tlibutil.so.1 => \/lib\/libutil.so.1 (0x4cc67000)
\n\tlibgsf-1.so.114 => \/usr\/lib\/libgsf-1.so.114 (0x4baff000)
\n\tlibcroco-0.6.so.3 => \/usr\/lib\/libcroco-0.6.so.3 (0x4bac7000)
\n\tlibxml2.so.2 => \/usr\/lib\/libxml2.so.2 (0x43f9e000)
\n\tlibpangoft2-1.0.so.0 => \/usr\/lib\/libpangoft2-1.0.so.0 (0x4afde000)
\n\tlibpangocairo-1.0.so.0 => \/usr\/lib\/libpangocairo-1.0.so.0 (0x4b009000)
\n\tlibpango-1.0.so.0 => \/usr\/lib\/libpango-1.0.so.0 (0x4af85000)
\n\tlibgmodule-2.0.so.0 => \/usr\/lib\/libgmodule-2.0.so.0 (0x4af77000)
\n\tlibglib-2.0.so.0 => \/usr\/lib\/libglib-2.0.so.0 (0x4ae68000)
\n\tlibcairo.so.2 => \/usr\/lib\/libcairo.so.2 (0x475c9000)
\n\tlibpng12.so.0 => \/usr\/lib\/libpng12.so.0 (0x43750000)
\n\tlibGLcore.so.1 => \/\/usr\/\/lib\/opengl\/nvidia\/lib\/libGLcore.so.1 (0x4b1e8000)
\n\tlibnvidia-tls.so.1 => \/\/usr\/\/lib\/opengl\/nvidia\/lib\/libnvidia-tls.so.1 (0x4b991000)
\n\tlibXext.so.6 => \/usr\/lib\/libXext.so.6 (0x4ba86000)
\n\tlibbz2.so.1 => \/lib\/libbz2.so.1 (0x4db01000)
\n\tlibpixman-1.so.0 => \/usr\/lib\/libpixman-1.so.0 (0x4762f000)
\n# ldd \/usr\/bin\/urxvt | wc -l
\n40
\n<\/code>
\nThat’s the time when someone can scream! 40 shared libraries for jsut a terminal ??? Why why why?<\/strong><\/p>\n

Ok it was time to check on the dependencies of the rxvt-unicode ebuild
\nFrom http:\/\/sources.gentoo.org\/viewcvs.py\/gentoo-x86\/x11-terms\/rxvt-unicode\/rxvt-unicode-9.02-r1.ebuild?view=markup<\/a>
\nIUSE=\"truetype perl iso14755\"
\n# see bug #115992 for modular x deps
\nRDEPEND=\"x11-libs\/libX11
\n\tx11-libs\/libXft
\n\tmedia-libs\/libafterimage
\n\tx11-libs\/libXrender
\n\tperl? ( dev-lang\/perl )\"
\nDEPEND=\"${RDEPEND}
\n\tdev-util\/pkgconfig
\n\tx11-proto\/xproto\"
\n<\/code><\/p>\n

Now what’s that libaferimage ?<\/p>\n

# eix libafterimage
\n[I] media-libs\/libafterimage
\n Available versions: ~1.07 1.15 {examples gif jpeg mmx nls png tiff}
\n Installed versions: 1.15(00:35:13 06\/22\/08)(mmx -examples -gif -jpeg -nls -png -tiff)
\n Homepage: http:\/\/www.afterstep.org\/afterimage\/index.php
\n Description: Afterstep's standalone generic image manipulation library
\n<\/code><\/p>\n

I don’t use any images on my terminal, so why am I not given the option not to have that dependency as a USE flag ? Without losing any more time I copied the \/usr\/portage\/x11-terms\/rxvt-unicode\/ to my \/usr\/local\/portage\/ directory, and modified the ebuild a bit:
\ndiff -uN \/usr\/portage\/x11-terms\/rxvt-unicode\/rxvt-unicode-9.02-r1.ebuild \/usr\/local\/portage\/x11-terms\/rxvt-unicode\/rxvt-unicode-9.02-r2.ebuild
\n--- \/usr\/portage\/x11-terms\/rxvt-unicode\/rxvt-unicode-9.02-r1.ebuild\t2008-05-05 23:39:36.000000000 +0300
\n+++ \/usr\/local\/portage\/x11-terms\/rxvt-unicode\/rxvt-unicode-9.02-r2.ebuild\t2008-06-22 00:55:04.000000000 +0300
\n@@ -11,18 +11,16 @@
\n LICENSE=\"GPL-2\"
\n SLOT=\"0\"
\n KEYWORDS=\"alpha amd64 hppa ~ia64 ppc ppc64 sparc x86 ~x86-fbsd\"
\n-IUSE=\"truetype perl iso14755\"
\n-
\n+IUSE=\"afterimage truetype perl iso14755\"
\n # see bug #115992 for modular x deps
\n RDEPEND=\"x11-libs\/libX11
\n \tx11-libs\/libXft
\n-\tmedia-libs\/libafterimage
\n+\tafterimage? (media-libs\/libafterimage)
\n \tx11-libs\/libXrender
\n \tperl? ( dev-lang\/perl )\"
\n DEPEND=\"${RDEPEND}
\n \tdev-util\/pkgconfig
\n \tx11-proto\/xproto\"
\n-
\n src_unpack() {
\n \tunpack ${A}
\n \tcd \"${S}\"
\n@@ -35,14 +33,12 @@
\n \t\t\"s~@TIC@ \\(\\$(srcdir)\/etc\/rxvt\\)~@TIC@ -o ${D}\/${tdir} \\1~\" \\
\n \t\tdoc\/Makefile.in
\n }
\n-
\n src_compile() {
\n \tmyconf=''
\n-
\n \tuse iso14755 || myconf='--disable-iso14755'
\n-
\n \teconf \\
\n \t\t--enable-everything \\
\n+\t\t$(use_enable afterimage afterimage) \\
\n \t\t$(use_enable truetype xft) \\
\n \t\t$(use_enable perl) \\
\n \t\t--disable-text-blink \\
\n<\/code><\/p>\n

I re-emerged urxvt using the new ebuild from my local portage and I was shocked at the results:
\n# ldd \/usr\/bin\/urxvt
\n\tlinux-gate.so.1 => (0xffffe000)
\n\tlibXft.so.2 => \/usr\/lib\/libXft.so.2 (0x45df1000)
\n\tlibXrender.so.1 => \/usr\/lib\/libXrender.so.1 (0x43839000)
\n\tlibfontconfig.so.1 => \/usr\/lib\/libfontconfig.so.1 (0x45f4b000)
\n\tlibX11.so.6 => \/usr\/lib\/libX11.so.6 (0x4b995000)
\n\tlibperl.so.1 => \/usr\/lib\/libperl.so.1 (0x43a60000)
\n\tlibpthread.so.0 => \/lib\/libpthread.so.0 (0x4c408000)
\n\tlibdl.so.2 => \/lib\/libdl.so.2 (0x4c2f4000)
\n\tlibc.so.6 => \/lib\/libc.so.6 (0x4c19a000)
\n\t\/lib\/ld-linux.so.2 (0x4c17c000)
\n\tlibgcc_s.so.1 => \/usr\/lib\/gcc\/i686-pc-linux-gnu\/4.1.2\/libgcc_s.so.1 (0x4c52f000)
\n\tlibfreetype.so.6 => \/usr\/lib\/libfreetype.so.6 (0x46414000)
\n\tlibz.so.1 => \/lib\/libz.so.1 (0x4368c000)
\n\tlibexpat.so.1 => \/usr\/lib\/libexpat.so.1 (0x4c4b1000)
\n\tlibXau.so.6 => \/usr\/lib\/libXau.so.6 (0x4cda8000)
\n\tlibXdmcp.so.6 => \/usr\/lib\/libXdmcp.so.6 (0x4c401000)
\n\tlibnsl.so.1 => \/lib\/libnsl.so.1 (0x4cc4e000)
\n\tlibm.so.6 => \/lib\/libm.so.6 (0x4c2cc000)
\n\tlibcrypt.so.1 => \/lib\/libcrypt.so.1 (0x4cc8c000)
\n\tlibutil.so.1 => \/lib\/libutil.so.1 (0x4cc67000)
\n# ldd \/usr\/bin\/urxvt | wc -l
\n20
\n<\/code>
\n100% less shared libraries!!!<\/strong><\/p>\n

What about memory usage ? I had not closed my 4 previously opened urxvt terms so a “ps auxww | grep urxvt” was just enough to check the differences:
\nuser 3594 0.0 0.8 25920 10796 ? Ss 19:02 0:00 urxvt
\nuser 6416 0.0 0.8 26820 11564 ? Ss 18:12 0:00 urxvt
\nuser 6519 0.1 0.9 27132 12040 ? Ss 18:13 0:08 urxvt
\nuser 15484 0.0 0.7 25356 10332 ? S 19:42 0:00 urxvt -fn xft:Dejavu Sans Mono:size=9:style=book -b 0 -embed 10485763 -name yeahconsole
\nuser 27957 1.0 0.4 9628 5652 ? Ss 19:50 0:00 urxvt<\/strong><\/code><\/p>\n

Amazing ? Almost 1\/3 VSZ and 1\/2 of RSS!! For someone who has constantly more than 4-5 terms open the benefits are more than great \ud83d\ude00
\nThis is going to be a great improvement for the next version of iloog<\/a> too.<\/p>\n

Being more than happy with my resource savings I decided to take a look at the Gentoo bugzilla to see if someone else had the same “problem” with me. Apparently I am not the only one asking for that USE flag since there’s already an open bug. http:\/\/bugs.gentoo.org\/show_bug.cgi?id=221835<\/a><\/p>\n

One lesson learned. When bumping into a problem with a Gentoo ebuild next time I’ll take a look at the Gentoo bugzilla before doing anything else by myself since there’s always some other crazy guy who has probably already bumped into the same bug and has already reported it. \ud83d\ude42<\/p>\n

*Update*
\nThe USE flag has been enabled in the latest rxvt-unicode ebuild for version 9.05. That happened just yesterday. Take a look at: http:\/\/bugs.gentoo.org\/show_bug.cgi?id=198944<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Today, while studying I decided to manually run a prelink on my system. For no good reason. Just boredom I guess. The results were pretty interesting though. Among the output there was a line that made a very big impression to me. prelink: \/usr\/bin\/urxvt: Cannot prelink against non-PIC shared library \/\/usr\/\/lib\/opengl\/nvidia\/lib\/libGL.so.1 Why oh why is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[12,3],"tags":[],"class_list":["post-319","post","type-post","status-publish","format-standard","hentry","category-gentoo","category-linux"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t