1 module:set_global();

     2 

     3 local measure = require"core.statsmanager".measure;

     4 local have_pposix, pposix = pcall(require, "util.pposix");

     5 

     6 local measures = {};

     7 setmetatable(measures, {

     8 	__index = function (t, k, m)

     9 		m = measure("sizes", "memory."..k); t[k] = m; return m;

    10 	end

    11 });

    12 

    13 module:hook("stats-update", function ()

    14 	measures.lua(collectgarbage("count")*1024);

    15 end);

    16 

    17 if have_pposix and pposix.meminfo then

    18 	module:hook_global("stats-update", function ()

    19 		local m = measures;

    20 		for k, v in pairs(pposix.meminfo()) do

    21 			m[k](v);

    22 		end

    23 	end);

    24 end

    25 

    26 local statm = io.open("/proc/self/statm");

    27 if statm then

    28 	statm:close();

    29 	local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE

    30 

    31 	module:hook("stats-update", function ()

    32 		local statm, err = io.open("/proc/self/statm");

    33 		if not statm then

    34 			module:log("error", tostring(err));

    35 			return;

    36 		end

    37 		-- virtual memory (caches, opened librarys, everything)

    38 		measures.total(statm:read("*n") * pagesize);

    39 		-- resident set size (actually used memory)

    40 		measures.rss(statm:read("*n") * pagesize);

    41 		statm:close();

    42 	end);

    43 end