On Mon, Jan 24, 2011 at 07:33, Nick Coghlan <ncogh...@gmail.com> wrote: > On Mon, Jan 24, 2011 at 9:29 PM, Antoine Pitrou <solip...@pitrou.net> wrote: >> On Mon, 24 Jan 2011 20:33:07 +1000 >> Nick Coghlan <ncogh...@gmail.com> wrote: >>> On Mon, Jan 24, 2011 at 6:22 AM, Brett Cannon <br...@python.org> wrote: >>> >> In "Getting Set Up" it describes how to build a pydebug build. Is that >>> >> really necessary for those who plan only to contribute by working on >>> >> pure Python code? >>> >> >>> > >>> > Yes, there is actually a laundry list of reasons even people only >>> > working on the stdlib should use a pydebug build. >>> >>> And one big reason why I don't unless I have a specific need to check >>> something with it - it makes the already quite long running time for >>> the full test suite take even longer :) >> >> Please try the -j option to regrtest. > > While I must admit I'm still not in the habit of running tests in > parallel, that's a substantial speed improvement regardless of build > type, so a non-debug build is still noticeably faster. > > release (with -j4): 2 min 25 sec (3 min wall clock time) > pydebug (with -j4): 4 min 43 sec (10 min wall clock time) >
If you thinks that's slow, trying running it under coverage single-threaded. =) > Given that I typically *don't* need the extra info from a debug build > to analyse problems and a full configure and rebuild cycle takes less > time than a single pydebug test run, I'll happily stick with the much > faster test execution that comes from using a release build. > I'm not going to drag on arguing this point, but there is more to pydebug builds than some debug info when working in the C code. For instance, pure Python code can still trigger problems indirectly in C code which gets picked up by a pydebug. You also have ResourceWarnings now which are almost exclusively triggered by pure Python code. My point is there is more to a pydebug build than just direct debugging support for C code. But if running the test suite w/o a debug build is what it takes to get people to run the test suite I will take that over not running it at all. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
