Mercurial > prosody-modules

annotate mod_statistics_mem/mod_statistics_mem.lua @ 5818:d3b69859553a

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mod_password_policy: Change error type from 'cancel' to 'modify' This makes more sense, as the problem relates to the data that has been entered, and therefore the request could be retried with different data.
author Matthew Wild <mwild1@gmail.com>
date Mon, 08 Jan 2024 17:28:39 +0000
parents 403d5cd924eb
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1379
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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1 -- Probably Linux-specific memory statistics
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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2
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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3 module:set_global();
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4
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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5 local human;
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Kim Alvefur <zash@zash.se>
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6 do
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Kim Alvefur <zash@zash.se>
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7 local tostring = tostring;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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8 local s_format = string.format;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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9 local m_floor = math.floor;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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10 local m_max = math.max;
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Kim Alvefur <zash@zash.se>
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11 local prefixes = "kMGTPEZY";
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Kim Alvefur <zash@zash.se>
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12 local multiplier = 1024;
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13
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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14 function human(num)
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Kim Alvefur <zash@zash.se>
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15 num = tonumber(num) or 0;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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16 local m = 0;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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17 while num >= multiplier and m < #prefixes do
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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18 num = num / multiplier;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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19 m = m + 1;
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20 end
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
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21
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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22 return s_format("%0."..m_max(0,3-#tostring(m_floor(num))).."f%sB",
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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23 num, m > 0 and (prefixes:sub(m,m) .. "i") or "");
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Kim Alvefur <zash@zash.se>
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24 end
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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25 end
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26
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27
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Kim Alvefur <zash@zash.se>
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28 local pagesize = 4096; -- according to getpagesize()
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Kim Alvefur <zash@zash.se>
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29 module:provides("statistics", {
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Kim Alvefur <zash@zash.se>
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30 statistics = {
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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31 memory_total = { -- virtual memory
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Kim Alvefur <zash@zash.se>
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32 get = function ()
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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33 local statm, err = io.open"/proc/self/statm";
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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34 if statm then
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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35 local total = statm:read"*n";
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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36 statm:close();
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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37 return total * pagesize;
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Kim Alvefur <zash@zash.se>
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38 else
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Kim Alvefur <zash@zash.se>
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39 module:log("debug", err);
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40 end
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Kim Alvefur <zash@zash.se>
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41 end;
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Kim Alvefur <zash@zash.se>
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42 tostring = human;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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43 };
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Kim Alvefur <zash@zash.se>
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44 memory_rss = { -- actual in-memory data size
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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45 get = function ()
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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46 local statm, err = io.open"/proc/self/statm";
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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47 if statm then
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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48 statm:read"*n"; -- Total size, ignore
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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49 local rss = statm:read"*n";
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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50 statm:close();
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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51 return rss * pagesize;
403d5cd924eb mod_statistics_mem: Module that collects memory usage stats from /proc
Kim Alvefur <zash@zash.se>
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52 else
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Kim Alvefur <zash@zash.se>
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53 module:log("debug", err);
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54 end
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Kim Alvefur <zash@zash.se>
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55 end;
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Kim Alvefur <zash@zash.se>
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56 tostring = human;
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Kim Alvefur <zash@zash.se>
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57 };
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Kim Alvefur <zash@zash.se>
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58 }
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Kim Alvefur <zash@zash.se>
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59 });