Software / code / prosody-modules
Annotate
mod_measure_cpu/mod_measure_cpu.lua @ 5119:048e339706ba
mod_rest: Remove manual reference expansion in schema
This hack was originally added to reduce the number of definitions of
common attributes (type, to, from etc) and payloads (e.g. delay). This
predated pointers and references, and until now was needed because
parsing picked out the correct stanza kind from the schema, which broke
internal references.
Removing this hack paves the way for allowing the schema to be
configured or customized more easily.
| author | Kim Alvefur <zash@zash.se> |
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| date | Tue, 20 Dec 2022 21:48:28 +0100 |
| parent | 4039:2af0301af734 |
| rev | line source |
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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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7 |
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8 local measure_cpu_now = measure("amount", "cpu.percent"); -- Current percentage |
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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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10 |
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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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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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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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27 |
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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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32 |
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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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35 |
