On Saturday 18 August 2007 12:44:20 pm Fernando Perez wrote: > Here's some interesting info. I'm sitting here with Dave Peterson, > from Enthought, and we've done a bunch of profiling that pointed to > setuptools, not Traits, being the culprit for the time increase. > We've now just done an install of Traits *without* any setuptools > (right now that requires manual surgery, but later it can be done > automatically if needed). Here are the resulting times: > > # Using traits > > maqroll[mpl-traits-debug]> time ./simple_plot.py > *** Using Traits!!! > 1.844u 0.212s 0:02.13 96.2% 0+0k 0+0io 0pf+0w > maqroll[mpl-traits-debug]> time ./simple_plot.py > *** Using Traits!!! > 1.840u 0.216s 0:02.58 79.4% 0+0k 0+0io 0pf+0w > maqroll[mpl-traits-debug]> time ./simple_plot.py > *** Using Traits!!! > 1.836u 0.196s 0:02.12 95.2% 0+0k 0+0io 0pf+0w > > # NOT Using traits > > maqroll[mpl-traits-debug]> time ./simple_plot.py > 2.200u 0.280s 0:02.67 92.8% 0+0k 0+0io 0pf+0w > maqroll[mpl-traits-debug]> time ./simple_plot.py > 2.248u 0.220s 0:02.74 89.7% 0+0k 0+0io 0pf+0w > maqroll[mpl-traits-debug]> time ./simple_plot.py > 2.216u 0.244s 0:02.72 90.0% 0+0k 0+0io 0pf+0w > > > As you'll notice, the traits times are *lower*. This is what my gut > told me, since I know how tight the traits code is. The point is that > traits can actually give you a performance *benefit*, not a cost. The > problem is with setuptools, which goes ballistic on the filesystem at > init time. The profiles I sent earlier have already all the > information on that, if you use kcachegrind to see it (that's how Dave > and I pinned it down). > > This hopefully settles the argument on the performance side. We'll > leave the final decision up to you guys, obviously. For IPython, this > settles the matter and we're going with traits, with setuptools banned > til further notice from ipython.
Thank you Dave and Fernando for getting to the bottom of this. A lot of work has gone in to making mpl compatible with setuptools. In fact, we require it to install on python-2.3. Are the setuptools developers aware of the problem? Darren ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
