Mercurial > prosody-modules
annotate mod_measure_memory/mod_measure_memory.lua @ 1624:0f20390f6fa5
mod_munin: Implementation of the Munin collection protocol
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 10 Mar 2015 16:39:08 +0100 |
parents | 2c39af0fb93b |
children | 4d38b8c03dfe |
rev | line source |
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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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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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2 |
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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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3 local measure = require"core.statsmanager".measure; |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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4 local have_pposix, pposix = pcall(require, "util.pposix"); |
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5 |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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6 local measures = {}; |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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7 setmetatable(measures, { |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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8 __index = function (t, k, m) |
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9 m = measure("sizes", "memory."..k); t[k] = m; return m; |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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10 end |
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
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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_global("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 local statm = io.open("/proc/self/statm"); |
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27 if statm then |
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28 statm:close(); |
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29 local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE |
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30 |
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Kim Alvefur <zash@zash.se>
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31 module:hook("stats-update", function () |
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32 local statm, err = io.open("/proc/self/statm"); |
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33 if not statm then |
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34 module:log("error", tostring(err)); |
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35 return; |
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36 end |
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37 -- virtual memory (caches, opened librarys, everything) |
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Kim Alvefur <zash@zash.se>
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38 measures.total(statm:read("*n") * pagesize); |
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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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39 -- resident set size (actually used memory) |
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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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40 measures.rss(statm:read("*n") * pagesize); |
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41 statm:close(); |
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42 end); |
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43 end |