On Wed, Dec 26, 2012 at 3:12 PM, Ned Batchelder <ned@nedbatchelder.com> wrote:
Also, do you have an actual example of expensive logging? I doubt your real code is logging the factorial of 2**15. What is actually in your debug log that is expensive? It will be much easier to discuss solutions if we are talking about actual problems.
Not specifically a Python logging issue, but what I periodically find in my code is that there's an "internal representation" and an "external representation" that have some sort of direct relationship. I could easily log the internal form at many points, but that's not particularly useful; logging the external involves either some hefty calculations, or perhaps a linear search of some list of possibilities (eg a reverse lookup of a constant - do you pay the cost of building up a reverse dictionary, or just do the search?). Obviously that's nothing like as expensive as 2**15!, but it makes more sense to be logging "WM_MOUSEMOVE" than "Msg 512". ChrisA