#11900: Serious regression caused by #9138
----------------------------+-----------------------------------------------
   Reporter:  SimonKing     |          Owner:  tbd                  
       Type:  defect        |         Status:  needs_work           
   Priority:  major         |      Milestone:  sage-4.7.3           
  Component:  performance   |       Keywords:  categories regression
Work_issues:  fix doctests  |       Upstream:  N/A                  
   Reviewer:                |         Author:  Simon King           
     Merged:                |   Dependencies:  #9138 #11911         
----------------------------+-----------------------------------------------

Comment(by SimonKing):

 PS: I did another benchmark.
 {{{
 sage: def test():
 ....:     for p in prime_range(10000):
 ....:         P = GF(p)['t','x','z']
 ....:
 sage: %time test()
 CPU times: user 1.14 s, sys: 0.02 s, total: 1.17 s
 Wall time: 1.17 s
 }}}
 with sage-4.6.2. I becomes more than two seconds with #9138.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:51>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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