File

mod_measure_memory/mod_measure_memory.lua @ 5272:acab61ba7f02

mod_http_oauth2: Focus username field automatically Reduces effort, not having to click or tab to focus the username field. Should have no negative effects since there's no other elements one might want to focus.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Mar 2023 16:48:18 +0100
parent 4040:e17c937a71b3
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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, { units = "bytes" }); 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