Last modified: 2014-07-14 10:20:34 UTC
In the profiling report, in addition to the column containing the time spent in individual functions, there should be a column containing the time spent in functions and all of their callees (equivalently, the amount of time the function was on the call stack). Currently, it often happens that a function like gsub ends up taking a large proportion of the time, but it's still unclear where the call is coming from, if several functions in use all contain gsub calls.