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irq_balancer
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2006-05-03
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2KB
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93 lines
#! /bin/sh
# Copyright (c) 1995-2002 SuSE Linux AG, Nuernberg, Germany.
# All rights reserved.
#
# /etc/init.d/irqbalance
# and its symbolic link
# /(usr/)sbin/rcirqbalance
#
### BEGIN INIT INFO
# Provides: irqbalance
# Required-Start:
# X-UnitedLinux-Should-Start:
# Required-Stop:
# X-UnitedLinux-Should-Stop:
# Default-Start: 1 2 3 5
# Default-Stop: 0 6
# Short-Description: irqbalance daemon providing irq balancing on MP-machines
# Description: Start irqbalance to allow interrrupt balancing over multiple CPUs
# usually all irqs are handled by cpu0, this daemon dynamcally
# uses all cpus for the irqs
#
#
#
### END INIT INFO
# Check for missing binaries (stale symlinks should not happen)
IRQBALANCE_BIN=/usr/sbin/irqbalance
test -x $IRQBALANCE_BIN || exit 5
NUM_CPU=`/usr/bin/getconf _NPROCESSORS_ONLN`
PHYS=$(grep "physical id" /proc/cpuinfo | sort | uniq | wc -l)
PROC=$(grep -c processor /proc/cpuinfo)
. /etc/rc.status
# Reset status of this service
rc_reset
case "$1" in
start)
echo -n "Starting irqbalance "
if [ $PHYS -gt 1 -o \( $PROC -gt 1 -a $PHYS -eq 0 \) ] ; then
startproc $IRQBALANCE_BIN
# Remember status and be verbose
rc_status -v
else
rc_status -u
fi
;;
stop)
echo -n "Shutting down irqbalance "
killproc -TERM $IRQBALANCE_BIN
# Remember status and be verbose
rc_status -v
;;
try-restart)
$0 status >/dev/null && $0 restart
# Remember status and be quiet
rc_status
;;
restart)
$0 stop
$0 start
# Remember status and be quiet
rc_status
;;
force-reload|reload)
echo -n "Reload service irqbalance "
if [ $PHYS -gt 1 -o \( $PROC -gt 1 -a $PHYS -eq 0 \) ] ; then
## if it supports it:
killproc -HUP $IRQBALANCE_BIN
#touch /var/run/irqbalance.pid
rc_status -v
else
rc_status -u
fi
;;
status)
echo -n "Checking for service irqbalance "
checkproc $IRQBALANCE_BIN
rc_status -v
;;
probe)
;;
*)
echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
exit 1
;;
esac
rc_exit