External lua profiler

From Iris2

attempt nr 1 : http://luaprofiler.luaforge.net/

• easy install
  • apt-get install luarocks
  • luarocks install luaprofiler
• usage (in main.lua, in global scope (not in function call))
  • require "profiler"
  • profiler.start()
• problem : works fine in non-iris lua file executed via commandline, but iris throws "undefined symbol: luaL_openlib" on require
  • todo : investigate further someday

see also

• http://lua-users.org/wiki/ProfilingLuaCode
• http://lua-users.org/wiki/PepperfishProfiler
• http://lua-users.org/wiki/ProfilerInLua