mod_measure_memory/mod_measure_memory.lua
author Matthew Wild <mwild1@gmail.com>
Sat, 24 Sep 2022 09:26:26 +0100
changeset 5063 5f1120c284c5
parent 4044 e17c937a71b3
permissions -rw-r--r--
mod_cloud_notify_extensions: Add note about dependency Noting here because people might not click through to see it on the mod_cloud_notify_encrypted page.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1627
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     1
module:set_global();
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     2
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     3
local measure = require"core.statsmanager".measure;
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     4
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     5
local measures = {};
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     6
setmetatable(measures, {
1659
4d38b8c03dfe mod_measure_memory: Silence warnings [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1627
diff changeset
     7
	__index = function (t, k)
4044
e17c937a71b3 mod_measure_memory: Report that stats are in units of bytes
Kim Alvefur <zash@zash.se>
parents: 3369
diff changeset
     8
		local m = measure("amount", "memory."..k, { units = "bytes" }); t[k] = m; return m;
1627
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
     9
	end
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    10
});
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    11
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    12
module:hook("stats-update", function ()
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    13
	measures.lua(collectgarbage("count")*1024);
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    14
end);
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    15
1659
4d38b8c03dfe mod_measure_memory: Silence warnings [luacheck]
Kim Alvefur <zash@zash.se>
parents: 1627
diff changeset
    16
if require"lfs".attributes("/proc/self/statm", "mode") == "file" then
1627
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    17
	local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    18
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    19
	module:hook("stats-update", function ()
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    20
		local statm, err = io.open("/proc/self/statm");
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    21
		if not statm then
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    22
			module:log("error", tostring(err));
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    23
			return;
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    24
		end
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    25
		-- virtual memory (caches, opened librarys, everything)
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    26
		measures.total(statm:read("*n") * pagesize);
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    27
		-- resident set size (actually used memory)
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    28
		measures.rss(statm:read("*n") * pagesize);
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    29
		statm:close();
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    30
	end);
2c39af0fb93b mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff changeset
    31
end