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mod_measure_lua/mod_measure_lua.lua @ 4578:d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
In the spirit of separate collectors found in other Prometheus
packages, this is a separate module to collect metrics related to
the lua stack itself.
author | Jonas Schäfer <jonas@wielicki.name> |
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date | Sat, 29 May 2021 12:12:17 +0200 |
child | 4601:3c3f45241317 |
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module:set_global() local custom_metric = require "core.statsmanager".metric local gc_bytes = custom_metric( "gauge", "lua_heap", "bytes", "Memory used by objects under control of the Lua garbage collector" ):with_labels() module:hook("stats-update", function () local kbytes = collectgarbage("count"); gc_bytes:set(kbytes * 1024); end);