#14204: Building unchanged documentation takes very long
----------------------------------+-----------------------------------------
Reporter: jdemeyer | Owner: jdemeyer
Type: defect | Status: closed
Priority: blocker | Milestone: sage-5.8
Component: build | Resolution: fixed
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: John Palmieri
Authors: Jeroen Demeyer | Merged in: sage-5.8.beta4
Dependencies: | Stopgaps:
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Comment (by jhpalmieri):
All the more reason to set `MAKE` so it uses multiple threads! On my (not
reasonably modern) OS X machine, rebuilding the documentation after
modifying one file, with `MAKE` unset, takes
{{{
real 2m44.637s
user 2m7.278s
sys 0m22.776s
}}}
With `MAKE` set to use two cores:
{{{
real 1m55.552s
user 2m12.224s
sys 0m24.907s
}}}
On sage.math, with `MAKE='make -j12'`:
{{{
real 0m34.899s
user 1m34.650s
sys 0m16.800s
}}}
So using multiple cores is very advantageous. Note also that if you are
only modifying a single file, be aware that you can do
{{{
sage --docbuild reference/homology html
}}}
(or `reference/combinat` or `reference/matrices` or ...). This will be
very fast (except when rebuilding the `combinat` docs ;), even with a
single core.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14204#comment:26>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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