prosody-modules
90f88a643973
mod_measure_memory/mod_measure_memory.lua

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mod_measure_memory/mod_measure_memory.lua @ 3677:90f88a643973

mod_bookmarks2: Add new module. This is the result of hacking during the Stockholm XMPP Sprint, for compatibility with older clients only doing Private XML XEP-0048. This module shouldn’t be loaded at the same time as mod_bookmarks, as both implement Private XML to achieve their conversion.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 28 Sep 2019 14:27:13 +0200
parent 3365:a5a5f85d7ca1
child 4040:e17c937a71b3
line wrap: on
line source

module:set_global();

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

local measures = {};
setmetatable(measures, {
	__index = function (t, k)
		local m = measure("amount", "memory."..k); t[k] = m; return m;
	end
});

module:hook("stats-update", function ()
	measures.lua(collectgarbage("count")*1024);
end);

if require"lfs".attributes("/proc/self/statm", "mode") == "file" then
	local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE

	module:hook("stats-update", function ()
		local statm, err = io.open("/proc/self/statm");
		if not statm then
			module:log("error", tostring(err));
			return;
		end
		-- virtual memory (caches, opened librarys, everything)
		measures.total(statm:read("*n") * pagesize);
		-- resident set size (actually used memory)
		measures.rss(statm:read("*n") * pagesize);
		statm:close();
	end);
end