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@jwerle
Last active Sep 11, 2019
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Stream CPU usage with `umq(1)' to a `histo(1)' histogram. See `umq(1)': https://github.com/jwerle/umq See `histo(1)': https://github.com/visionmedia/histo
#!/bin/bash
# ps -eo pcpu,pid,user,args | sort -r -k1
PS="ps"
VERSION="0.0.1"
version () {
echo $VERSION
}
usage () {
echo "usage: cpu-stream [-hvV] [-u <user>] [-f <pattern>]"
echo " [-c <column>] [-p <port>]"
if [ "$1" = "1" ]; then
echo
echo "options:"
echo " -p, --port <port> port to emit on (default: 3000)"
echo " -u, --user <user> filter on user"
echo " -f, --filter <pattern> grep pattern syntax to filter"
echo " -c, --column <column> a csv of columns for \`ps' (default: pcpu)"
echo " -v, --verbose show verbose output"
echo " -h, --help display this message"
echo " -V, --version output version"
fi
}
column="pcpu"
port="3000"
user=""
filter=""
while true; do
arg="$1"
if [ "" = "$1" ]; then
break;
fi
if [ "${arg:0:1}" != "-" ]; then
shift
break;
fi
case $arg in
-p|--port)
port="$2"
shift 2
;;
-u|--user)
user="$2"
column="${column},user"
shift 2
;;
-f|--filter)
filter="$2"
shift 2
;;
-c|--column)
column="$2"
shift 2
;;
-h|--help)
usage 1
exit 1
;;
-V|--version)
version
exit 0
;;
-v|--verbose)
VERBOSE="--verbose"
shift
;;
*)
{
echo "unknown option \`$arg'"
usage
} >&$STDERR
exit 1
;;
esac
done
"${PS}" -eo "${column}" | sort -r -k2 | tail -n +2 | grep "${user}" | grep "${filter}" | head -1 | {
while read -r n; do
case "$n" in
**[0-9]**)
v="`echo \"$n * 100\" | bc`"
printf "%1.f\n" "$v"
sleep .5
;;
esac
done
};
exit $?
#!/bin/sh
umq recv localhost 3000 | histo
                                      █
 4700 ․                               █
                                      █
 4519 ․                               █
                                      █
 4338 ․                               █
                                      █
 4158 ․                               █
                                      █
 3977 ․                               █
                                      █
 3796 ․                               █
                                      █
 3615 ․                               █
                                      █
 3435 ․                               █
                                      █
 3254 ․                               █
                                      █
 3073 ․                               █
                                      █
 2892 ․                               █
                                      █
 2712 ․                               █
                                      █ █ █
 2531 ․                               █ █ █
                                      █ █ █
 2350 ․                               █ █ █
                                      █ █ █
 2169 ․                               █ █ █
                                    █ █ █ █
 1988 ․                             █ █ █ █
                                    █ █ █ █
 1808 ․                             █ █ █ █
                                    █ █ █ █ █ █
 1627 ․                             █ █ █ █ █ █
                                    █ █ █ █ █ █
 1446 ․                             █ █ █ █ █ █
                                    █ █ █ █ █ █
 1265 ․                             █ █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █
 1085 ․                             █ █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █
  904 ․                             █ █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █     █
  723 ․                             █ █ █ █ █ █ █ █     █ █ █
                                    █ █ █ █ █ █ █ █     █ █ █ █ █
  542 ․                             █ █ █ █ █ █ █ █     █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █     █ █ █ █ █ █ █ █ █ █ █
  362 ․                             █ █ █ █ █ █ █ █   █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
  181 ․                             █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
                                    █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
    0 ․   ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․ ․
#!/bin/sh
umq recv 3000 -f ./cpu-stream.sh
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