#17671: gcd and xgcd over fields, PID and UFD
-------------------------------------+-------------------------------------
       Reporter:  vdelecroix         |        Owner:
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.5
      Component:  basic arithmetic   |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Vincent Delecroix  |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/vdelecroix/17671                 |  1d84c4a9160533338cb19a8df2351cd0fc9d79d0
   Dependencies:  #17673             |     Stopgaps:
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Comment (by vdelecroix):

 Nope. There seems to be a regression with respect to timings (at least I
 do not understand what is happening). If I run the doctest on the file
 `coercion_and_categories.rst` in
 `$SAGE_ROOT/src/doc/en/thematic_tutorials/` then I end up with an
 incredibly long `TestSuite(P).run()`. If I instead replace it with
 `TestSuite(P).run(skip='_test_gcd_vs_xgcd')` everything looks fine.

 Moreover, in `sage.rings.function_field.function_field.py`, line 62, the
 test
 {{{
 TestSuite(M).run(skip = '_test_gcd_vs_xgcd')  # long time (52s on
 sage.math, 2012)
 }}}
 is much longer for me. And if I remove the `skip` then it is even longer!

 This is a critical issue.

--
Ticket URL: <http://trac.sagemath.org/ticket/17671#comment:14>
Sage <http://www.sagemath.org>
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