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|
#!/bin/bash
#
# Copyright (C) 2006-2008 Holger Levsen and Micah Anderson
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2 dated June,
# 1991.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Graph Vserver cpu usage stats
#
# Configuration variables
# vservers - specify the vservers to include in the graph (default: all)
#
# NOTE: If no configuration variable is set, the default will be used
#
# see vserver_resources for example uses of configuration files
#
# or links to define what to monitor:
# vserver_cpu_ -> monitor cpu usage of all vservers on all cpus
# vserver_hold_ -> monitor hold on all vservers on all cpus
# vserver_hold_0 -> monitor hold on all vservers on cpu0
# vserver_hold_1 -> monitor hold on all vservers on cpu1
# vserver_hold_foo -> monitor hold on all cpus on vserver named foo
# vserver_sys_foo -> monitor cpu usage on all cpus on vserver named foo
# Changelog
# version 0.2 - 2006 October 02 Holger Levsen <debian@layer-acht.org>
# - label fixed: we measure jiffies not seconds
# - Fix error that results if NodeName is set to include a domain name
# - Fix hypens in NodeNames, replace them with underscores
# - whitespace cleanup
# version 0.3 - 2006 October 07 Holger Levsen <debian@layer-acht.org>
# - rewrite of vserver_usercpu
# - smp-aware
# - can display hold too (third value in the cpu line(s) of /proc/virtual/<xid>/sched)
# - no seperation between user and system cpu anymore
# - handle identical vserver-names by using the vserver-id internally
# version 0.4 - 2007, October 07
# Micah Anderson <micah@riseup.net>
# - fixed variable name (thanks pietro)
# version 0.5 - 2008, July 07
# Micah Anderson <micah@riseup.net>
# - fixed number of CPU regexp to be more accurate
# - added $NAMELOC - fixes plugin so it works with VCI_SPACES (> 2.6.19) as well as older version
# TODO:
# - comment the code or go mad
# - add info how many jiffies per second are available on a machine
# - user and system cpu are always added to each other, make it optional to split them?
# - use /proc less often (100 times more overhead than talking to the kernel directly)
# i.e. use something like pagesize=`perl -MPOSIX -e 'print POSIX::sysconf(_SC_PAGESIZE), "\n";'`
VSERVERS="$vservers"
# FIXME: using arrays is a bashism
INFO=(`sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo '<none>'`)
KCIN="$[ 16#${INFO[2]} ]";
# If this is 1, then VCI_SPACES is present in the kernel (new in 2.6.19)
if [ $[ (KCIN >> 10) & 1 ] -eq 1 ]
then
NAMELOC="nsproxy"
else
NAMELOC="cvirt"
fi
if [ -z "$VSERVERS" ] ; then
XIDS=`find /proc/virtual/* -type d -exec basename {} \;`
else
# it's really more performant to specify vservers by ids or by linking but not in the configuration-file by name
XIDS=""
for i in $VSERVERS ; do
if [ -d /proc/virtual/$i ] ; then
XIDS="${XIDS}${i} "
else
for j in `find /proc/virtual/* -type d -exec basename {} \;` ; do
if [ "$i" = "`cat /proc/virtual/$j/$NAMELOC |grep NodeName |cut -f2`" ] ; then
XIDS="${XIDS}${j} "
fi
done
fi
done
fi
BASEPARAM=`basename $0 | sed 's/^vserver_//'`
MODE=`echo $BASEPARAM | sed 's/^hold.*//'`
#debug=true
if [ -z "$MODE" ] ; then
MODE=hold
TARGET=`echo $BASEPARAM | sed 's/^hold_//'`
else
MODE=cpu
TARGET=`echo $BASEPARAM | sed 's/^cpu_//'`
fi
CPU1=0
if [ -n "$TARGET" ] ; then
if [ "${#TARGET}" == 1 ] ; then
if [ $debug ] ; then echo $MODE, only on cpu $TARGET, for all vservers ; fi
WHAT=ALLVSERVER
CPU1=$TARGET
else
if [ $debug ] ; then echo $MODE on all cpus together, only for vserver $TARGET ; fi
WHAT=VSERVER
fi
else
if [ $debug ] ; then echo $MODE for all cpus, for all vservers ; fi
WHAT=ALLVSERVER
fi
CPUS=$[ `grep ^processor /proc/cpuinfo|wc -l` -1 ]
CPUS=`seq $CPU1 $CPUS`
if [ $debug ] ; then
echo cpus= $CPUS
echo baseparam= $BASEPARAM
echo mode= $MODE
echo target= $TARGET
echo what= $WHAT
fi
if [ "$1" = "config" ]; then
echo 'graph_category vserver'
echo 'graph_args --base 1000'
if [ "$MODE" == "cpu" ] ; then
echo 'graph_title Vserver cpu usage'
echo 'graph_vlabel jiffies used per cpu per ${graph_period}'
echo 'graph_info Shows jiffies used per cpu on each vserver.'
else
echo 'graph_title Vserver cpu on hold'
echo 'graph_vlabel jiffies on hold per cpu per ${graph_period}'
echo 'graph_info Shows jiffies on hold used per cpu on each vserver.'
fi
for j in $CPUS ; do
A=0
for i in $XIDS ; do
LABEL=`cat /proc/virtual/$i/$NAMELOC |grep NodeName |cut -f2`
if [ "$WHAT" == "ALLVSERVER" ] || [ "$TARGET" == "$LABEL" ] ; then
NAME=`echo $LABEL | cut -d. -f1 | tr '-' '_'`
if [ "$MODE" == "cpu" ] ; then
echo "${NAME}_$j.label cpu usage for cpu $j on $LABEL"
echo "${NAME}_$j.info cpu usage for cpu $j on $LABEL."
else
echo "${NAME}_$j.label on hold for cpu $j on $LABEL"
echo "${NAME}_$j.info on hold for cpu $j on $LABEL."
fi
echo "${NAME}_$j.type COUNTER"
if [ "$A" == 0 ] ; then
echo "${NAME}_$j.draw AREA"
A=1
else
echo "${NAME}_$j.draw STACK"
fi
fi
done
done
exit 0
fi
for j in $CPUS ; do
for i in $XIDS ; do
LABEL=`cat /proc/virtual/$i/$NAMELOC |grep NodeName |cut -f2`
if [ "$WHAT" == "ALLVSERVER" ] || [ "$TARGET" == "$LABEL" ] ; then
NAME=`echo $LABEL | cut -d. -f1 | tr '-' '_'`
echo -n "${NAME}_$j.value "
if [ "$MODE" == "cpu" ] ; then
USERCPU=`cat /proc/virtual/$i/sched |grep "cpu $j"| cut -d' ' -f3`
SYSCPU=`cat /proc/virtual/$i/sched |grep "cpu $j"| cut -d' ' -f4`
echo $[$USERCPU + $SYSCPU]
else
cat /proc/virtual/$i/sched |grep "cpu $j"| cut -d' ' -f5
fi
fi
done
done
|
