module:set_global();
local measure = require"core.statsmanager".measure;
local have_pposix, pposix = pcall(require, "util.pposix");
local measures = {};
setmetatable(measures, {
__index = function (t, k)
local m = measure("sizes", "memory."..k); t[k] = m; return m;
end
});
module:hook("stats-update", function ()
measures.lua(collectgarbage("count")*1024);
end);
if have_pposix and pposix.meminfo then
module:hook_global("stats-update", function ()
local m = measures;
for k, v in pairs(pposix.meminfo()) do
m[k](v);
end
end);
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