#14204: Building unchanged documentation takes very long
----------------------------+-----------------------------------------------
       Reporter:  jdemeyer  |         Owner:  GeorgSWeber
           Type:  defect    |        Status:  new        
       Priority:  blocker   |     Milestone:  sage-5.8   
      Component:  build     |    Resolution:             
       Keywords:            |   Work issues:             
Report Upstream:  N/A       |     Reviewers:             
        Authors:            |     Merged in:             
   Dependencies:            |      Stopgaps:             
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Changes (by jhpalmieri):

 * cc: vbraun, hivert (added)


Comment:

 I don't know. I think there are 74 documents that need to be built: 56
 modules in the reference manual, 1 master reference manual doc, and 17
 others. When you run `make doc`, 57 of those get built twice. For each
 build, on my machine, it takes 6 seconds to run Sphinx and decide that
 nothing needs to be done.  This all adds up.

 I wonder if it could be sped up much by calling Sphinx internally in
 Python, instead of as a command-line call each time. Otherwise, I don't
 have any ideas. Users should be advised to run `sage --docbuild
 reference/algebras html`, etc., rather than rebuilding the full reference
 manual. They should also be advised to buy a machine with lots of cores
 and set `MAKE=make -jN` for some large number `N` :)

 Should this really be a blocker?

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14204#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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