Mercurial > prosody-modules

annotate mod_measure_cpu/mod_measure_cpu.lua @ 3715:f03a023cd523

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mod_http_muc_log: Compose page title from room data More flexible than composing the title from name and date in the controller. Also opens the door to using other room data fields.
author Kim Alvefur <zash@zash.se>
date Sun, 13 Oct 2019 16:16:14 +0200
parents e0fb97f47212
children 2af0301af734
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2a4c632a24cb mod_measure_cpu: Collect CPU usage statistic
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1 module:set_global();
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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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8 local measure_cpu_now = measure("amount", "cpu.percent"); -- Current percentage
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e0fb97f47212 mod_measure_cpu: Rename counter metric to avoid name clash (thanks pep.)
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9 local measure_cpu_total = measure("counter", "cpu.clock");
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11 local last_cpu_wall, last_cpu_clock;
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12 module:hook("stats-update", function ()
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13 local new_wall, new_clock = get_time(), get_clock();
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14 local pc = 0;
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15 if last_cpu_wall then
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16 pc = 100/((new_wall-last_cpu_wall)/(new_clock-last_cpu_clock));
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17 end
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18 last_cpu_wall, last_cpu_clock = new_wall, new_clock;
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20 measure_cpu_now(pc);
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21 measure_cpu_total(new_clock);
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22 end);
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23
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24 -- Some metadata for mod_munin
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25 local munin_meta = mt.new(); munin_meta.data = module:shared"munin/meta";
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26 local key = "global_cpu_amount";
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28 munin_meta:set(key, "", "graph_args", "--base 1000 -r --lower-limit 0 --upper-limit 100");
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29 munin_meta:set(key, "", "graph_title", "Prosody CPU Usage");
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30 munin_meta:set(key, "", "graph_vlabel", "%");
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31 munin_meta:set(key, "", "graph_category", "cpu");
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33 munin_meta:set(key, "percent", "label", "CPU Usage");
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34 munin_meta:set(key, "percent", "min", "0");
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