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