#715: Parents probably not reclaimed due to too much caching
------------------------+---------------------------------------------------
   Reporter:  robertwb  |          Owner:  somebody           
       Type:  defect    |         Status:  needs_review       
   Priority:  major     |      Milestone:  sage-4.8           
  Component:  coercion  |       Keywords:  weak cache coercion
Work_issues:            |       Upstream:  N/A                
   Reviewer:            |         Author:  Simon King         
     Merged:            |   Dependencies:  #9138, #11900      
------------------------+---------------------------------------------------

Comment(by SimonKing):

 Replying to [comment:97 jpflori]:
 >  * 3092.9 seconds with no errors on vanilla
 >  * 3097.8 seconds with 3 errors in sage.matrix.action.pyx and 1 in
 sage.structure.corece_dict.pyx on vanille + the two patches in the
 current ticket ([http://trac.sagemath.org/sage_trac/ticket/715 #715])
 description.

 Cool!

 Note that the tests in sage/schemes only take 597.5 seconds when I apply
 #11943 and #11935 on top. Hence, if there really is a slow-down then it
 can be countered.

 One detail about trac: If you want to link to a ticket, you can just
 provide the number after the "hash symbol", hence, `#715` and not
 `[http://.../715 #715]`.

 > That's kind of strange. Maybe the slowdown is absorbed by the fact that
 the test are running in parallel ?

 I don't know the typical standard deviation of the timings.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:98>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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