Mercurial > prosody-modules

annotate mod_measure_memory/mod_measure_memory.lua @ 2491:5fbca7de2088

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mod_smacks: Send out more ack requests where needed Under some circumstances it was possible that more than "max_unacked_stanzas" where left in the outgoing stanza queue without forcing an ack. This could happen, when more stanzas entered the queue while the last ack request was still unanswered. Now the test "#queue > max_unacked_stanzas" is done upon receiving an ack as well as when sending out stanzas, which fixes this bug.
author tmolitor <thilo@eightysoft.de>
date Sun, 12 Feb 2017 19:27:50 +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
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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