Gentoo Full Text Bug Listing

Description:

Opened: 2007-08-26 01:49 0000

After the horrors of bug #190237, here's a closer analysis:

After upgrading gcc-config to 1.4.0, running "gcc" went slower than before
under some circumstances. For me reproducable was:

rbu $ time gcc

real    0m0.002s
user    0m0.000s
sys     0m0.001s

root # time gcc

real    0m0.324s
user    0m0.220s
sys     0m0.042s

The difference between the two users is that the latter does not have
/usr/x86_64-pc-linux-gnu/gcc-bin/4.2.0 in its PATH. Removing the PATH from the
other user made gcc slow again.

This should not affect many situations (baiscally only when you are not
sourcing /etc/profile in your bashrc and use su without a dash). Still this
does not happen on an older system of mine running sys-devel/gcc-config-1.3.16.

old # echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin
old # time gcc

real    0m0.009s
user    0m0.000s
sys     0m0.004s



$ emerge --info
Portage 2.1.3.7 (default-linux/amd64/2007.0/desktop, gcc-4.2.0, glibc-2.5-r4,
2.6.22-gentoo-r2 x86_64)
=================================================================
System uname: 2.6.22-gentoo-r2 x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
Gentoo Base System release 1.12.9
Timestamp of tree: Sun, 26 Aug 2007 00:50:01 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p17
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python:     2.4.4-r4
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache:     2.4-r7
sys-apps/baselayout: 1.12.9-r2
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.61
sys-devel/automake:  1.4_p6, 1.9.6-r2, 1.10
sys-devel/binutils:  2.17
sys-devel/gcc-config: 1.4.0
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.21
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=nocona -mtune=nocona -O2 -pipe -mmmx -msse -msse2 -msse3
-mfpmath=sse -fweb -frename-registers -fomit-frame-pointer -fno-ident"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf
/etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/
/etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo
/etc/texmf/web2c"
CXXFLAGS="-march=nocona -mtune=nocona -O2 -pipe -mmmx -msse -msse2 -msse3
-mfpmath=sse -fweb -frename-registers -fomit-frame-pointer -fno-ident"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digest autoaddcvs ccache collision-protect cvs digest
distlocks metadata-transfer multilib-strict noinfo parallel-fetch sandbox
sfperms sign strict test unmerge-orphans userfetch userpriv"
GENTOO_MIRRORS=" http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo
http://pandemonium.tiscali.de/pub/gentoo
ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo
http://mirrors.sec.informatik.tu-darmstadt.de/gentoo
http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror
http://www.ibiblio.org/pub/Linux/distributions/gentoo
http://distfiles.gentoo.org"
LANG="de_DE.utf8"
LC_ALL="de_DE.utf8"
LDFLAGS=" -Wl,--as-needed -Wl,-O1"
LINGUAS="de en"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/layman/java-overlay /usr/local/layman/kolab2
/usr/local/layman/gentopia /usr/local/layman/sunrise
/usr/local/layman/marineam-xen /usr/local/layman/xen /usr/local/layman/xeffects
/home/rbu/devel/gentoo/gentoo-x86"
SYNC="rsync://rsync.de.gentoo.org/gentoo-portage"
USE="3dnow 3dnowex X X509 a52 aac aalib acl acpi alsa amd64 apache2 arts asf
audiofile avahi bash-completion berkdb bitmap-fonts bl bluetooth bzip2 bzlib
cairo cdr cli cracklib crypt cups curl dbus dga divx dri dts dv dvd dvdr
dvdread eds emboss encode esd evo exif fam ffmpeg firefox flac foomaticdb
fortran ftp gcj gdbm ggi gif gimpprint glibc-omitfp glitz gmedia gpm gstreamer
gtk gtk2 hal http iconv idn ieee1394 imagemagick ipv6 isdnlog jack java jpeg
kde kerberos kqemu ldap libcaca libnotify live logitech-mouse lzo mad midi
mikmod mmx mmx2 mmxext mozilla mp3 mpeg mudflap musepack nas ncurses network
networkmanager nls nptl nptlonly nsplugin nvidia ogg oggvorbis openal opengl
openmp oss pam pcre pdf perl php pic png ppds pppd pulseaudio python qemu qt3
qt3support qt4 quicktime readline realmedia reflection rss samba sasl sdl
session slang sndfile speex spell spl sse sse2 ssl subversion svg tcltk tcpd
test tetex theora threads tiff truetype truetype-fonts type1 type1-fonts
unicode urandom usb v4l v4l2 vcd vorbis wma wmf wmp x264 xanim xen xine xml
xorg xspf xv xvid xvmc zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem
bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel
intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci"
ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file
hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route
share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev"
KERNEL="linux" LCD_DEVICES="picolcd luise ncurses" LINGUAS="de en"
USERLAND="GNU" VIDEO_CARDS="nvidia dri vesa nv"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_COMPRESS,
PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Bug#: 190260	Product: Gentoo Linux	Version: unspecified	Platform: All
OS/Version: Linux	Status: RESOLVED	Severity: normal	Priority: P2
Resolution: FIXED	Assigned To: toolchain@gentoo.org	Reported By: rbu@gentoo.org
Component: Core system
URL:
Summary: sys-devel/gcc-config-1.4.0: gcc wrapper is slow when no PATH is set
Keywords:
Status Whiteboard:
Opened: 2007-08-26 01:49 0000