#!/bin/sh
# Copyright (c) 1995-2001 Silicon Graphics, Inc.  All Rights Reserved.
#
# 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; either version 2 of the License, or (at your
# option) any later version.
#
# 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.
#

tmp=/tmp/$$
trap "rm -f $tmp.*; exit" 0 1 2 3  15
rm -f $tmp.*

. $PCP_DIR/etc/pcp.env
. $PCP_SHARE_DIR/lib/pmview-args

# --- scaling parameters ---
#

# maximum packets per second
max=750

# maximum req rate (default: 5% of packet rate)
maxreq=`expr $max / 20`

# maximum disk io rate (I/O operations per second)
maxio=100

# maximum average disk business (percent)
maxbusy=30

# milliseconds per CPU
maxcpu=1000

# maximum TCP output queue length
maxq=5

# --- define usage message ---
#
_usage()
{
    echo >$tmp.msg 'Usage: '$prog' [options] [interface ...]

options:
  -b maxbusy	maximum average disk active (percent) [default 30]
  -i maxio	maximum total I/Os per second [default 100]
  -m max        maximum expected packets sent or received per sec [default 750]
  -r maxreq     maximum expected Web requests per second [default 35]
  -V            verbose/diagnostic output  

pmview(1) options:'

    _pmview_usage >> $tmp.msg
    echo >> $tmp.msg
    echo >> $tmp.msg 'Default title is: Web Server Activity for Host'
    echo >> $tmp.msg '
  By default all network interfaces are shown, with a maximum packet rate
  of '$max' packets per second.  The maximum request rate is 5% (of the
  maximum packet rate) and the maximum error rate is 20% of the maximum
  request rate.

  If given, the [interface ...] regular expressions restrict
  the network statistics displayed to matching network interface names only.'

    _pmview_info -f $tmp.msg
}

# --- build WM_COMMAND X(1) property for restart after login/logout ---
#
echo -n "pmview Version 2.1 \"$prog\"" > $tmp.pmview
for arg
do
    echo -n " \"$arg\"" >>$tmp.pmview
done
echo >> $tmp.pmview

# --- parse command line arguments ---
#
verbose=false
argInterfaces=""
interfaces=""

_pmview_args "$@"

if [ -n "$otherArgs" ]
then
    while getopts "?b:i:m:r:v:V" c $otherArgs
    do
	case $c
	in
	    b)
		# and now the obscure +ve integer checking bit
		# ...note the creative use of unary - to prevent leading signs
		maxbusy=$OPTARG
		if [ "X-$maxbusy" != "X`expr 0 + -$maxbusy 2>/dev/null`" ]
		then
		    _pmview_error "$prog: -b must have a positive integral argument"
		    #NOTREACHED
		fi
		;;

	    i)
		maxio=$OPTARG
		if [ "X-$maxio" != "X`expr 0 + -$maxio 2>/dev/null`" ]
		then
		    _pmview_error "$prog: -i must have a positive integral argument"
		    #NOTREACHED
		fi
		;;

	    m)
		max=$OPTARG
		if [ "X-$max" != "X`expr 0 + -$max 2>/dev/null`" ]
		then
		    _pmview_error "$prog: -m must have a positive integral argument"
		    #NOTREACHED
		fi
		maxreq=`expr $max / 20`
		;;

	    r)
		maxreq=$OPTARG
		if [ "X-$maxreq" != "X`expr 0 + -$maxreq 2>/dev/null`" ]
		then
		    _pmview_error "$prog: -r must have a positive integral argument"
		    #NOTREACHED
		fi
		;;

	    v)
                if [ $OPTARG = "1" ]
                then
                    _pmview_warning "$prog: pmview version 1 no longer supported, using version 2"
                elif [ $OPTARG != "2" ]
                then
                    _pmview_error "$prog: only version 2 supported for -v"
                    # NOTREACHED
                fi
		;;

	    V)
		verbose=true
		;;

	    '?')
		_usage
		exit 1
		;;
	esac
    done

    set - $otherArgs
    shift `expr $OPTIND - 1`
    [ $# -gt 0 ] && argInterfaces="$*"
fi

# maximum average active for disks, percent -> msec/sec
maxactive=`expr $maxbusy \* 1000 / 100`


# maximum req error rate (default: 20% of packet rate)
maxerr=`expr $maxreq / 5`
[ "$maxerr" -eq 0 ] && maxerr=1


# --- check that web metrics are available from metrics source ---
#
if _pmview_fetch web.allservers.errors
then
    :
else
    _pmview_error "$prog: weblog metrics not defined in the name space"
    #NOTREACHED
fi


# --- if metrics source is an archive, and find out name of host ---
#
if [ "X$arch" != X ]
then
    host=`pmdumplog -l $arch | $PCP_AWK_PROG '/^Performance/ {print $5}' | sed -e 's/,//g'`
    [ "X$host" = X ] && host="unknown host"
    host="$host (Archive $arch)"
fi


# --- get network interfaces ---
#
pminfo -f $msource network.interface.total.bytes >$tmp.int
sed -e 's/\]//' -e 's/"//g' $tmp.int \
	| $PCP_AWK_PROG '$1 == "inst" {print $4}' > $tmp.list
if [ ! -s $tmp.list ]
then
    if [ "X$arch" != X ]
    then
	_pmview_error "$prog: failed to get network interface list from archive \"$arch\""
	#NOTREACHED
    else
	_pmview_error "$prog: failed to get network interface list from host \"$host\""
	#NOTREACHED
    fi
fi


# --- pmview config file has already been created; keep writing to it ---
#

cat << end-of-file >> $tmp.pmview
#
# $prog
#
end-of-file

if $verbose
then
    echo "# Available Network Interfaces: " `cat $tmp.list` >> $tmp.pmview
fi

if [ -z "$argInterfaces" ]
then
    cp $tmp.list $tmp.chosen
else
    touch $tmp.chosen
    for i in $argInterfaces
    do
	egrep $i $tmp.list >> $tmp.chosen
    done
fi

interfaces_sp=`cat $tmp.chosen | sort | uniq`
loflag=false
for iface in $interfaces_sp
do
    if [ "X$iface" = "Xlo0" ]
    then
	loflag=true
    else
	interfaces="$interfaces $iface"
    fi
done
$loflag && interfaces="$interfaces lo0"
ninterfaces=`echo $interfaces | wc -w`

if $verbose
then
    echo "# Network interfaces Matching \"$argInterfaces\": $interfaces" >> $tmp.pmview
fi

if [ $ninterfaces = 0 ]
then
    echo "$prog: no matching network interfaces"
    echo "Available interfaces on host \"$host\" are: " `cat $tmp.list`
    echo ""
    _usage
    exit 1
fi

net_grid1=`expr $ninterfaces + 2`

# --- how many CPUs on this system? ---
#
numcpu=`pminfo $msource -f $namespace hinv.ncpu 2>&1 | $PCP_AWK_PROG '
BEGIN		{ num = 0 }
$1 == "value"	{ if (NF == 2) num = $2 }
END		{ print num }'`

if [ $numcpu -lt 1 ]
then
    _pmview_fetch_indom kernel.percpu.cpu.user && numcpu=$number
    if [ $numcpu -lt 1 ]
    then
	_pmview_error "$prog: Unable to determine the number of CPUs on host $host"
	#NOTREACHED
    fi
fi

maxcpu=`expr $maxcpu \* $numcpu`

if $verbose
then
    if [ $numcpu = 1 ]
    then
	echo "# 1 CPU detected" >> $tmp.pmview
	echo "#" >> $tmp.pmview
    else
    	echo "# $numcpu CPUs detected" >> $tmp.pmview
	echo "#" >> $tmp.pmview
    fi
fi

# --- how much memory on this system? ---
#
realmem=0
if pminfo -v $msource $namespace hinv.physmem > /dev/null 2>&1
then
    realmem=`pminfo -f $msource $namespace hinv.physmem | $PCP_AWK_PROG '/value/ { print $2 }'`
    if [ -z "$realmem" ]
    then
	realmem=0
    else
	realmem=`expr $realmem \* 1024`
    fi
fi
[ $realmem = 0 ] && echo "$prog: Warning: Unable to determine size of real memory for $host"


# --- how many disks on this system? ---
#
numdisk=`pminfo $msource -f $namespace hinv.ndisk 2>&1 | $PCP_AWK_PROG '
BEGIN		{ num = 0 }
$1 == "value"	{ if (NF == 2) num = $2 }
END		{ print num }'`

if [ $numdisk -lt 0 ]
then
    _pmview_fetch_indom disk.dev.read && numdisk=$number
    [ $numdisk -lt 0 ] && _pmview_warning "$prog: Unable to determine the number of disks for $host"
fi

if $verbose
then
    if [ $numdisk = 1 ]
    then
	echo "# 1 disk detected" >> $tmp.pmview
	echo "#" >> $tmp.pmview
    else
    	echo "# $numdisk disks detected" >> $tmp.pmview
	echo "#" >> $tmp.pmview
    fi
fi


# --- set the window title ---
#
if [ -z "$titleArg" ]
then
    titleArg="SGI PCP : Web Server Activity for Host $host"
fi


# --- set base strings for base plane objects ---
#
if [ $numcpu = 1 ]
then
    basestr_cpu="CPU Utilization\nSummed over 1 CPU"
else
    basestr_cpu="CPU Utilization\nSummed over $numcpu CPUs"
fi

basestr_mem="Physical Memory Utilization\nNormalized to `pminfo -f $msource mem.physmem | grep value | sed -e 's/ *value //'` Kbytes"

basestr_disk="Read and Write activity for all Disks\nNormalized to $maxio I/Os per second"
basestr_diskact="Average Disk Utilization\nNormalized to $maxbusy% across $numdisk disks"

basestr_net="Input and Output on Network Interfaces\nPackets are normalized to $max packets per second"

basestr_amem="Memory metrics which may indicate a problem\nNormalized to $maxerr events per second"
basestr_atcp="TCP metrics which may indicate a problem\nNormalized to $maxerr events per second"

basestr_size="HTTP request rate by response size in bytes\nNormalized to $maxreq hits per second"
basestr_type="HTTP request rate by HTTP method\nNormalized to $maxreq hits per second"


# ---- the real config starts here ---
# pmview Version 2.1
#
cat << end-of-file >> $tmp.pmview

_stackLength 26
_marginWidth 8
_marginDepth 8

_colorList cpu_colors ( blue2 red2 yellow2 cyan2 )
_colorList disk_colors ( violet yellow )
_colorList memory_colors (
    rgbi:1.0/1.0/0.0
    rgbi:0.0/1.0/1.0
    rgbi:1.0/0.0/0.0
    rgbi:1.0/0.0/1.0
    rgbi:0.0/0.0/1.0
    rgbi:0.0/1.0/0.0
)
_colorList network_colors (
        rgbi:0.8/0.0/0.0
        rgbi:1.0/0.5/0.0
	rgbi:0.0/0.8/0.0 
)
_colorList type_colors (
	rgbi:0.8/0.0/0.0
	rgbi:1.0/1.0/0.6
	rgbi:1.0/0.0/1.0
	rgbi:0.0/1.0/1.0
	rgbi:1.0/1.0/0.0
)

_colorList size_colors (
	rgbi:1.0/0.35/0.0
	rgbi:0.6/0.0/0.9
	rgbi:0.0/1.0/0.0
	rgbi:1.0/0.5/0.0
	rgbi:0.65/0.3/1.0
	rgbi:0.3/1.0/0.3
	rgbi:1.0/0.65/0.3
	rgbi:0.8/0.6/1.0
	rgbi:0.6/1.0/0.6
	rgbi:1.0/0.8/0.6
)

_grid _hide (

#
# Alarms
#
	_grid 1 0 6 2 south _hide (
	    _bar 0 1 6 1 west _row _groupbyrow (
		_metrics (
end-of-file

for m in drops conndrops timeoutdrop rcvbadsum rexmttime sndrexmitpack attemptfails inerrs retranssegs
do
    if _pmview_fetch network.tcp.$m
    then
	echo "			network.tcp.$m	$maxerr" >> $tmp.pmview
    fi
done

cat << end-of-file >> $tmp.pmview
		)
		_colorList (
			red1 red1 red1 red1 red1 red1
		)
		_baseLabel "$basestr_atcp"
	    )
	    _bar 0 0 3 1 west _row _groupbyrow (
		_metrics (
end-of-file

for m in swap.pagesout network.mbuf.failed network.mbuf.waited
do
    if _pmview_fetch $m
    then
	echo "			$m	$maxerr" >> $tmp.pmview
    fi
done

cat << end-of-file >> $tmp.pmview
		)
		_colorList (
			yellow rgbi:1.0/0.5/0.0 rgbi:1.0/0.5/0.0
		)
		_baseLabel "$basestr_amem"
	    )
	    _label 3 0 west _right _medium "Alarms"
	)

#
# Size
#
	_bar 0 1 1 10 south _groupbycol (
		_metrics (
			web.allservers.requests.size.unknown	$maxreq
			web.allservers.requests.size.gt3m	$maxreq
			web.allservers.requests.size.le3m	$maxreq
			web.allservers.requests.size.le1m	$maxreq
			web.allservers.requests.size.le300k	$maxreq
			web.allservers.requests.size.le100k	$maxreq
			web.allservers.requests.size.le30k	$maxreq
			web.allservers.requests.size.le10k	$maxreq
			web.allservers.requests.size.le3k	$maxreq
			web.allservers.requests.size.zero	$maxreq
		)
		_metriclabels _towards (
			"?" ">3M" "3M" "1M" "300k"
			"100k" "30k" "10k" "3k" "0k"
		)
		_colorList size_colors	
		_baseLabel "$basestr_size"
	)

	_label 0 11 northeast _right _medium "Size"

#
# Type
#
	_bar 1 6 1 5 south _groupbycol (
		_metrics (
			web.allservers.errors		$maxerr
			web.allservers.requests.other	$maxreq
			web.allservers.requests.post	$maxreq
			web.allservers.requests.head	$maxreq
			web.allservers.requests.get	$maxreq
		)
		_colorList type_colors
		_baseLabel "$basestr_type"
	)

	_label 1 11 north _right _medium "Type"

#
# System level stuff
#
	_grid 1 3 5 3 southwest (
            _stack 0 0 (
               	_metrics (
                       	kernel.all.cpu.user 	$maxcpu
                       	kernel.all.cpu.sys 	$maxcpu
                       	kernel.all.cpu.intr 	$maxcpu
                       	kernel.all.cpu.wait.total 	$maxcpu
               	)
               	_colorList cpu_colors
		_baseLabel "$basestr_cpu"
            )
       	    _label 0 1 north _right _medium "CPU"

# 2 levels of base plane, halve the margin size and increase the height
# for the inner one
#
_marginWidth 4
_marginDepth 4
_baseHeight 4

	    _grid 1 0 2 1 _show (
		_baseColor rgbi:0.30/0.30/0.30
                _stack 0 0 south _cylinder (
               	    _metrics (
                       	disk.all.write		$maxio
                       	disk.all.read		$maxio
               	    )
               	    _colorList disk_colors
		    _baseLabel "$basestr_disk"
                ) 
end-of-file

    # disk.all.avg_disk.active metric is not available from pcp 1.x
    #
    if _pmview_fetch disk.all.avg_disk.active
    then
	cat << end-of-file >> $tmp.pmview
		_bar 1 0 _cylinder (
		    _metrics (
			disk.all.avg_disk.active	$maxactive
		    )
		    _colorList ( green2 )
		    _baseLabel "$basestr_diskact"
		)
end-of-file
    fi

    cat << end-of-file >> $tmp.pmview
		_baseColor rgbi:0.15/0.15/0.15
            ) 
	    _label 1 1 2 1 north _medium "Disk"

end-of-file

    if [ "X$realmem" != X0 -a "X$realmem" != X ]
    then
	xcoord=0

	cat << end-of-file >> $tmp.pmview
	    _grid 3 0 2 1 _show (
		_baseColor rgbi:0.30/0.30/0.30
end-of-file

	if _pmview_fetch mem.freemem 
	then
	    cat << end-of-file >> $tmp.pmview
		_stack $xcoord 0 (
		    _metrics (
			mem.freemem		$realmem
		    )
		    _colorList ( rgbi:0.0/0.8/0.0 )
		    _baseLabel "Free memory"
		)
end-of-file
	    xcoord=`expr $xcoord + 1`
	fi

	if _pmview_fetch mem.util.kernel
	then
	    cat << end-of-file >> $tmp.pmview

		_stack $xcoord 0 (
		    _metrics (
end-of-file
	    # Use all the metrics we have
	    for m in kernel fs_ctl fs_dirty fs_clean user ; do 
		if _pmview_fetch mem.util.$m
		then
	echo "			 mem.util.$m	$realmem" >> $tmp.pmview
		fi
	    done

	    cat << end-of-file >> $tmp.pmview
		    )
		    _colorList memory_colors
		    _baseLabel "$basestr_mem"
		)
end-of-file
	    xcoord=`expr $xcoord + 1`
	fi

	cat << end-of-file >> $tmp.pmview
		_baseColor rgbi:0.15/0.15/0.15
	    )
	    _label 3 1 2 1 north _medium "Mem"
end-of-file
    fi

    cat << end-of-file >> $tmp.pmview

# restore defaults
#
	    _marginWidth 8
	    _marginDepth 8
	    _baseHeight 2
	)

#
# Network Stuff
#
	_grid 2 6 $net_grid1 5 south _hide (
		_grid 0 0 1 2 west _hide (
       			_label 0 0 east _right _medium "In"
       			_label 0 1 east _right _medium "Out"
		)
# 2 levels of base plane, halve the margin size and increase the height
# for the inner one
#
_marginWidth 4
_marginDepth 4
_baseHeight 4

		_grid 1 0 $ninterfaces 2 _show (
		    _baseColor rgbi:0.30/0.30/0.30

end-of-file

    xcoord=0
    yin=0
    yout=1
    for iface in $interfaces
    do
	cat << end-of-file >> $tmp.pmview

	    	    _stack $xcoord $yin (
			_metrics (
			    network.interface.in.errors[$iface]  $maxerr
			    network.interface.in.drops[$iface]   $maxerr
			    network.interface.in.packets[$iface] $max
			)
			_colorList network_colors
			_baseLabel "$basestr_net"
	    	    )
	    	    _stack $xcoord $yout (
		    	_metrics (
			    network.interface.out.errors[$iface]  $maxerr
			    network.interface.out.drops[$iface]   $maxerr
			    network.interface.out.packets[$iface] $max
		    	)
		    	_colorList network_colors
		    	_baseLabel "$basestr_net"
	    	    )
end-of-file
	xcoord=`expr $xcoord + 1`
    done

    cat << end-of-file >> $tmp.pmview
		    _baseLabel "$basestr_net"
_baseColor rgbi:0.15/0.15/0.15
		)
# restore defaults
#
_marginWidth 8
_marginDepth 8
_baseHeight 2
		_grid 1 2 $ninterfaces 2 _hide (
end-of-file

    xcoord=0
    ylabel=0
    for iface in $interfaces
    do
	cat << end-of-file >> $tmp.pmview
		    _label $xcoord $ylabel north _down _medium "$iface"
end-of-file
	xcoord=`expr $xcoord + 1`
    done

    cat << end-of-file >> $tmp.pmview
		)
	)
       	_label 3 11 northwest _right _medium "Network"
)
end-of-file

$verbose && cat $tmp.pmview

eval $PMVIEW <$tmp.pmview $args -title "'$titleArg'" -xrm "'*iconName: $prog'"

exit