prosody-modules
55e3ca6bdfd1
mod_measure_cpu/mod_measure_cpu.lua

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mod_measure_cpu/mod_measure_cpu.lua @ 4924:55e3ca6bdfd1

mod_http_admin_api: Fix client -> client_id (the actual field name)
author Matthew Wild <mwild1@gmail.com>
date Mon, 11 Apr 2022 20:31:43 +0100
parent 4039:2af0301af734
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2a4c632a24cb 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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Kim Alvefur <zash@zash.se>
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5 local get_time = require "socket".gettime;
2a4c632a24cb mod_measure_cpu: Collect CPU usage statistic
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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
Kim Alvefur <zash@zash.se>
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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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19
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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.)
Kim Alvefur <zash@zash.se>
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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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