Thought I'd try something new and post to the mailing list looking for existing solutions instead of writing one myself :) I'd like to profile a mixed lua+C program/library. What tools/solutions are out there? (a cursory search shows a few solutions for lua 5.0 or 5.1, but these projects no longer work with 5.2/5.3) How do people find out where the hot spots are in their lua programs? The flamegraph tool comes with things for many languages (java, node.js, etc: http://www.brendangregg.com/flamegraphs.html#Updates ) I know of agentzh's flamegraphs for luajit/openresty ( https://github.com/openresty/stapxx/blob/master/tapset/luajit.sxx ) Does someone have one of these for plain PUC lua?