On Thu, Jan 21, 2010 at 10:19 AM, Reid Kleckner <[email protected]> wrote: > On Thu, Jan 21, 2010 at 12:27 PM, Jake McGuire <[email protected]> wrote: >> On Wed, Jan 20, 2010 at 2:27 PM, Collin Winter <[email protected]> >> wrote: >>> Profiling >>> --------- >>> >>> Unladen Swallow integrates with oProfile 0.9.4 and newer [#oprofile]_ to >>> support >>> assembly-level profiling on Linux systems. This means that oProfile will >>> correctly symbolize JIT-compiled functions in its reports. >> >> Do the current python profiling tools (profile/cProfile/pstats) still >> work with Unladen Swallow? > > Sort of. They disable the use of JITed code, so they don't quite work > the way you would want them to. Checking tstate->c_tracefunc every > line generated too much code. They still give you a rough idea of > where your application hotspots are, though, which I think is > acceptable.
Hmm. So cProfile doesn't break, but it causes code to run under a completely different execution model so the numbers it produces are not connected to reality? We've found the call graph and associated execution time information from cProfile to be extremely useful for understanding performance issues and tracking down regressions. Giving that up would be a huge blow. -jake _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
