Help needed finding large globals

[Mike Crowe <drmikecrowe@...>]

Hi folks,

We are looking for large global variables that may be consuming lots of 
memory.  I have this snippet I periodically run:

function dumpLargeGlobals()
   if not config.dumpLargeGlobals then return end
   for k,v in pairs(_G) do
       logger:debug({GLOBAL=k,value=v})
   end
end

This shows me *everything*.  However, is there any way I can get the 
size of a table (in bytes)?  I'm really looking for strings/tables that 
are excessively large.

TIA
Mike