Mercurial > prosody-modules

annotate mod_measure_memory/mod_measure_memory.lua @ 2608:362ca94192ee

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mod_smacks: Add resumed session to event "smacks-hibernation-end" Older versions of this event only have the "intermediate" session in event.session (the one used to resume the existing session), but not the resumed one. This adds event.resumed which contains the resumed one alongside to event.session.
author tmolitor <thilo@eightysoft.de>
date Sat, 11 Mar 2017 01:37:28 +0100
parents a01a3fb96302
children 07d6077d2db7
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2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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 have_pposix, pposix = pcall(require, "util.pposix");
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5
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6 local measures = {};
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7 setmetatable(measures, {
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8 __index = function (t, k)
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9 local m = measure("sizes", "memory."..k); t[k] = m; return m;
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10 end
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11 });
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12
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13 module:hook("stats-update", function ()
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14 measures.lua(collectgarbage("count")*1024);
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15 end);
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16
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17 if have_pposix and pposix.meminfo then
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18 module:hook("stats-update", function ()
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19 local m = measures;
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20 for k, v in pairs(pposix.meminfo()) do
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21 m[k](v);
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22 end
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23 end);
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24 end
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25
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26 if require"lfs".attributes("/proc/self/statm", "mode") == "file" then
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27 local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE
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29 module:hook("stats-update", function ()
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30 local statm, err = io.open("/proc/self/statm");
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31 if not statm then
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32 module:log("error", tostring(err));
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33 return;
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34 end
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35 -- virtual memory (caches, opened librarys, everything)
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36 measures.total(statm:read("*n") * pagesize);
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37 -- resident set size (actually used memory)
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38 measures.rss(statm:read("*n") * pagesize);
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39 statm:close();
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40 end);
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41 end