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c0balt
Guru
Joined: 04 Jul 2004
Posts: 441
Location: Germany
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 Posted: Fri Jul 30, 2004 9:47 pm Post subject: speeding up "calculation module dependencies" ? |
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Hi,
everytime i boot i notice the "calculating module dependencies" line, which takes really long (compared to all the other stuff).
from the titel i suspect gentoo checks everytime which other modules the modules in autoload.d need.
as i dont change the modules in autoload.d is there a way to speed this up?
thx in advance |
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steveb
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Joined: 18 Sep 2002
Posts: 4564
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oberyno
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Joined: 15 Feb 2004
Posts: 467
Location: /bin/zsh
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| Posted: Fri Jul 30, 2004 10:37 pm Post subject: |
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| You want this thread. If you are prepared to run modules-update everytime you make a new kernel, you can just comment out the module checking lines. There are some more complex solutions on the second page. |
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c0balt
Guru
Joined: 04 Jul 2004
Posts: 441
Location: Germany
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| Posted: Fri Jul 30, 2004 10:42 pm Post subject: |
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thx very much, ill read through it
edit:
omg, let alone the first two suggestions in the thread gave me a increase in boot time of about ~7sec which are about 28% !!!
gentoo just rocks  |
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teutzz
Guru
Joined: 22 Apr 2004
Posts: 333
Location: .ro
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| Posted: Sat Jul 31, 2004 7:57 pm Post subject: |
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here´s my /etc/init.d/modules :
| Code: | #!/sbin/runscript
# Copyright 1999-2004 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /home/cvsroot/gentoo-src/rc-scripts/init.d/modules,v 1.30 2004/04/21 17:09:18 vapier Exp $
depend() {
need checkroot hostname
use isapnp
}
load_modules() {
local x=
local i=0
local retval=0
local modules=
local modargs=
local modcount=0
local config="$1"
[ -z "${config}" ] && return 0
[ ! -r "${config}" ] && return 0
# Loop over every line in $config
eval $(awk '
BEGIN {
COUNT = 0 # Make sure COUNT is set
}
$0 !~ /(^[[:space:]]*(#|$))/ {
if (MODULES == "")
MODULES = $1
else
MODULES = MODULES " " $1
# Not the greatest method to remove $1 from $0, but it works
sub(/^[[:space:]]*[^[:space:]]*[[:space:]]*/, "")
ARGS[COUNT] = $0
COUNT++
}
END {
# 'eval' will make sure these are set to proper bash variables
print "modcount=" COUNT
print "modules=\"" MODULES "\""
for (x = 0;x < COUNT;x++)
print "modargs[" x "]=\"" ARGS[x] "\""
}
' "${config}")
if [ "${modcount}" -gt 0 ]
then
einfo "Using ${config} as config:"
for x in ${modules}
do
ebegin " Loading module ${x}"
modprobe -q ${x} ${modargs[${i}]} &>/dev/null
retval=$?
eend ${retval} " Failed to load ${x}"
i=$((i+1))
[ "${retval}" -eq 0 ] || modcount=$((modcount-1))
done
einfo "Autoloaded ${modcount} module(s)"
fi
return 0
}
start() {
# Should not fail if kernel do not have module
# support compiled in ...
[ -f /proc/modules ] || return 0
# Here we should fail, as a modular kernel do need
# depmod command ...
if [ ! -x /sbin/depmod ]
then
eerror "ERROR: system is missing /sbin/depmod !"
return 1
fi
if [ -z "${CDBOOT}" ]
then
# do we have find?
if [ -x /usr/bin/find ]
then
if [ -n "`/usr/bin/find /etc/modules.d -type f -newer /etc/modules.conf`" ]
then
ebegin "Calculating module dependencies"
/sbin/modules-update &>/dev/null
eend $? "Failed to calculate dependencies"
else
einfo "Module dependencies are up-to-date - do not recalculating."
fi
else # no we don't
ebegin "Calculating module dependencies"
/sbin/modules-update &>/dev/null
eend $? "Failed to calculate dependencies"
fi
fi
if [ -f /etc/modules.autoload -a ! -L /etc/modules.autoload ]
then
# Loop over every line in /etc/modules.autoload.
load_modules /etc/modules.autoload
else
local KV="$(uname -r)"
local KV_MAJOR="`KV_major "${KV}"`"
local KV_MINOR="`KV_minor "${KV}"`"
# New support for /etc/modules.autoload/kernel-$KV
if [ "$(get_KV)" -ge "$(KV_to_int '2.5.48')" ] && \
[ -f /etc/modules.autoload.d/kernel-"${KV_MAJOR}.${KV_MINOR}" ]
then
load_modules /etc/modules.autoload.d/kernel-"${KV_MAJOR}.${KV_MINOR}"
elif [ ! -f /etc/modules.autoload.d/kernel-"${KV_MAJOR}.${KV_MINOR}" ]
then
ewarn "Missing /etc/modules.autoload.d/kernel-${KV_MAJOR}.${KV_MINOR}"
load_modules /etc/modules.autoload.d/kernel-2.4
else
load_modules /etc/modules.autoload.d/kernel-2.4
fi
fi
#
# Just in case a sysadmin prefers generic symbolic links in
# /lib/modules/boot for boot time modules we will load these modules
#
if [ -n "$(modprobe -l -t boot)" ]
then
modprobe -a -t boot \* &>/dev/null
fi
}
# vim:ts=4
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and it does what you want 
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