Mercurial > prosody-modules

annotate mod_measure_cpu/mod_measure_cpu.lua @ 5536:96dec7681af8

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mod_firewall: Update user marks to store instantly via map store The original approach was to keep marks in memory only, and persist them at shutdown. That saves I/O, at the cost of potentially losing marks on an unclean shutdown. This change persists marks instantly, which may have some performance overhead but should be more "correct". It also splits the marking/unmarking into an event which may be watched or even fired by other modules.
author Matthew Wild <mwild1@gmail.com>
date Thu, 08 Jun 2023 16:20:42 +0100
parents 2af0301af734
children
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2a4c632a24cb mod_measure_cpu: Collect CPU usage statistic
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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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8 local measure_cpu_now = measure("amount", "cpu.percent"); -- Current percentage
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2af0301af734 mod_measure_cpu: Specify units of total CPU time as seconds
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9 local measure_cpu_total = measure("counter", "cpu.clock", { units = "seconds" });
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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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e0fb97f47212 mod_measure_cpu: Rename counter metric to avoid name clash (thanks pep.)
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21 measure_cpu_total(new_clock);
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22 end);
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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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