root / plugins / cpu / multicpu1sec @ 17f78427
Historique | Voir | Annoter | Télécharger (2 ko)
| 1 | 8a955385 | Steve Schnepp | #!/bin/bash |
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| 2 | 3b64d836 | Steve Schnepp | # (c) 2012 - Bushmills |
| 3 | # License : GPLv2 |
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| 4 | 8a955385 | Steve Schnepp | |
| 5 | #%# family=auto |
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| 6 | #%# capabilities=autoconf |
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| 7 | |||
| 8 | |||
| 9 | interval=1 # mpstat sampling interval |
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| 10 | timeout=1200 # 20 minutes daemon watchdog timeout |
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| 11 | watchdog=60 # test for timeout every $watchdog seconds |
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| 12 | pluginfull="$0" # full name of plugin |
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| 13 | plugin="${0##*/}" # name of plugin
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| 14 | pidfile="$MUNIN_PLUGSTATE/munin.$plugin.pid" |
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| 15 | cache="$MUNIN_PLUGSTATE/munin.$plugin.value" |
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| 16 | graph="$plugin" |
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| 17 | style="AREA" |
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| 18 | cpus=$(grep -c ^processor /proc/cpuinfo) |
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| 19 | |||
| 20 | 17f78427 | Lars Kruse | run_watchdog() { # should also trap kill and term signals
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| 21 | ad72df15 | Steve Schnepp | kill -0 $(cat $pidfile) 2> /dev/null || rm -f $pidfile |
| 22 | 8a955385 | Steve Schnepp | } |
| 23 | |||
| 24 | |||
| 25 | run_acquire() {
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| 26 | echo "$$" > $pidfile |
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| 27 | 5090a771 | Steve Schnepp | LANG=C mpstat -P ALL $interval | |
| 28 | 729c6123 | Steve Schnepp | awk -v cpus=$cpus '$2>=0&&$2<99 {print $2, systime(), (100-$11)/cpus; system("");}' >> $cache
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| 29 | 8a955385 | Steve Schnepp | rm -f $pidfile $cache |
| 30 | } |
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| 31 | |||
| 32 | run_daemon() {
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| 33 | ad72df15 | Steve Schnepp | run_watchdog |
| 34 | 8a955385 | Steve Schnepp | if [ -f $pidfile ]; then |
| 35 | touch $pidfile |
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| 36 | 17f78427 | Lars Kruse | else |
| 37 | 8a955385 | Steve Schnepp | $pluginfull acquire & |
| 38 | fi |
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| 39 | } |
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| 40 | |||
| 41 | |||
| 42 | # -------------------------------------------------------------------------- |
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| 43 | |||
| 44 | run_autoconf() {
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| 45 | run=(yes no) |
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| 46 | type -t mpstat > /dev/null |
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| 47 | echo "${run[$?]}"
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| 48 | } |
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| 49 | |||
| 50 | run_config() {
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| 51 | run_daemon |
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| 52 | cat << EOF |
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| 53 | graph_title $graph |
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| 54 | 34eeebbe | Lars Kruse | graph_category 1sec |
| 55 | 8a955385 | Steve Schnepp | graph_vlabel average cpu use % |
| 56 | graph_scale no |
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| 57 | 17f78427 | Lars Kruse | graph_total All CPUs |
| 58 | 8a955385 | Steve Schnepp | update_rate 1 |
| 59 | 17f78427 | Lars Kruse | graph_data_size custom 1d, 10s for 1w, 1m for 1t, 5m for 1y |
| 60 | 8a955385 | Steve Schnepp | EOF |
| 61 | cpun=0 |
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| 62 | for ((i=0; i<$cpus; i++)); do |
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| 63 | cat << EOF |
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| 64 | cpu${cpun}.label CPU $cpun
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| 65 | cpu${cpun}.draw $style
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| 66 | cpu${cpun}.min 0
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| 67 | EOF |
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| 68 | style=STACK |
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| 69 | ((cpun++)) |
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| 70 | done |
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| 71 | } |
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| 72 | |||
| 73 | run_fetch() {
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| 74 | run_daemon |
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| 75 | awk 'NF==3 {print "cpu" $1 ".value " $2 ":" $3}' $cache
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| 76 | > $cache |
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| 77 | } |
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| 78 | |||
| 79 | |||
| 80 | run_${1:-fetch}
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| 81 | exit 0 |
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| 82 | |||
| 83 | # export -f functionname export functionname to subshell, avoiding the need |
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| 84 | # for locating plugin for subshell calling, when process needs a different |
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| 85 | # pid. Instead, $SHELL -c functionname can be used. useful for calling |
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| 86 | # acquire which needs a different pid than watchdog, otherwise watchdog |
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| 87 | # could/will kill itself when expiring before the watched process is killed. |
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| 88 | # not a POSIX feature. |