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annotate mod_measure_memory/mod_measure_memory.lua @ 3965:2b10e51d85a6

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mod_muc_limits: Add config option to limit to join stanzas only This is a bit more limited in pre-0.11 MUC modules, because it just detects stanzas sent to full JIDs (which would include all presence and nick changes). This option is useful for setups where users are typically unaffiliated, but trusted (e.g. if access to the room is gated through some other means such as password/token auth).
author Matthew Wild <mwild1@gmail.com>
date Fri, 03 Apr 2020 12:26:56 +0100
parents a5a5f85d7ca1
children e17c937a71b3
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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
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5 local measures = {};
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6 setmetatable(measures, {
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7 __index = function (t, k)
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a5a5f85d7ca1 mod_measure_memory: Use the 'amount' measure type
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8 local m = measure("amount", "memory."..k); t[k] = m; return m;
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9 end
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10 });
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11
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12 module:hook("stats-update", function ()
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13 measures.lua(collectgarbage("count")*1024);
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14 end);
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15
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16 if require"lfs".attributes("/proc/self/statm", "mode") == "file" then
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17 local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE
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18
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19 module:hook("stats-update", function ()
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20 local statm, err = io.open("/proc/self/statm");
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21 if not statm then
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22 module:log("error", tostring(err));
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23 return;
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24 end
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25 -- virtual memory (caches, opened librarys, everything)
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26 measures.total(statm:read("*n") * pagesize);
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27 -- resident set size (actually used memory)
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28 measures.rss(statm:read("*n") * pagesize);
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29 statm:close();
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30 end);
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31 end