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mod_measure_cpu/mod_measure_cpu.lua @ 1694:25412e94fb3e
mod_auto_accept_subscriptions: Fix passing nil in log message
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 05 May 2015 13:58:37 +0100 |
parent | 1677:2a4c632a24cb |
child | 3431:8357cabc31f6 |
rev | line source |
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1677
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mod_measure_cpu: Collect CPU usage statistic
Kim Alvefur <zash@zash.se>
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1 module:set_global(); |
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2 |
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3 local measure = require"core.statsmanager".measure; |
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4 local mt = require"util.multitable"; |
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5 local get_time = require "socket".gettime; |
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6 local get_clock = os.clock; |
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7 |
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8 local measure_cpu_now = measure("amount", "cpu.percent"); -- Current percentage |
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9 |
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10 local last_cpu_wall, last_cpu_clock; |
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11 module:hook("stats-update", function () |
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12 local new_wall, new_clock = get_time(), get_clock(); |
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13 local pc = 0; |
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14 if last_cpu_wall then |
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15 pc = 100/((new_wall-last_cpu_wall)/(new_clock-last_cpu_clock)); |
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16 end |
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17 last_cpu_wall, last_cpu_clock = new_wall, new_clock; |
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18 |
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19 measure_cpu_now(pc); |
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20 end); |
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21 |
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22 -- Some metadata for mod_munin |
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23 local munin_meta = mt.new(); munin_meta.data = module:shared"munin/meta"; |
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24 local key = "global_cpu_amount"; |
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25 |
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26 munin_meta:set(key, "", "graph_args", "--base 1000 -r --lower-limit 0 --upper-limit 100"); |
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27 munin_meta:set(key, "", "graph_title", "Prosody CPU Usage"); |
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28 munin_meta:set(key, "", "graph_vlabel", "%"); |
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29 munin_meta:set(key, "", "graph_category", "cpu"); |
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30 |
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31 munin_meta:set(key, "percent", "label", "CPU Usage"); |
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32 munin_meta:set(key, "percent", "min", "0"); |
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33 |