Hi All, Okay had a go at narrowing down the issue - appears to be the 'import compiler' line taking around 2 seconds. The importing seems pretty fast - possibly the exceptions in IronPython being generated causing the slowdown.
Here's the test code I used: import sys import datetime print datetime.datetime.now() try: import antigravity except ImportError: pass print datetime.datetime.now() try: import compiler except ImportError: print " Error \n", sys.exc_info()[0] for line in sys.exc_info(): print line print datetime.datetime.now() CPython: 2007-12-27 17:35:57.279000 2007-12-27 17:35:57.284000 2007-12-27 17:35:57.316000 IronPython: 2007-12-27 17:37:59.502000 2007-12-27 17:37:59.528000 Error exceptions.ImportError exceptions.ImportError No module named parser <traceback object at 0x000000000000002B> 2007-12-27 17:38:01.664000 Both cope with unknown modules fast but it appears the exception condition causes the slowdown. This is a common way for optional or preferred modules to be imported so I would say this is probably an issue though not having worked on anything large enough in IronPython to draw firm conclusions!! CPython seems to be about 10 times faster importing modules from the various benchmarks I have run. Easy workaround for me is to remove the import from configobj - hurrah :-) Cheers, Davy On Dec 26, 2007 9:56 PM, Michael Foord <[EMAIL PROTECTED]> wrote: > Davy Mitchell wrote: > > I was curious as to why one of my apps was taking so long to start up. > > Sure it loaded up some RSS feeds but it shouldn't take *that* long. > > Anyway turns out to be 4-5 seconds importing configobj > > > > import datetime > > print datetime.datetime.now() > > from configobj import ConfigObj > > print datetime.datetime.now() > > > > Repeated with consistent results in seconds: > > IPY2.0 4.0 (A6 and A7) > > IPY1.1 1.9 > > Cpython 0.1 > > > > Not a huge issue for me but for large apps, this could be quite > > significant for startup times. > > > > Can you benchmark which bits of the import take how much time? > > Michael > > > Cheers, > > Davy > > > > > > _______________________________________________ > Users mailing list > Users@lists.ironpython.com > http://lists.ironpython.com/listinfo.cgi/users-ironpython.com > -- Davy Mitchell Blog - http://www.latedecember.co.uk/sites/personal/davy/ Twitter - http://twitter.com/daftspaniel Skype - daftspaniel needgod.com _______________________________________________ Users mailing list Users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com