For comparison, here is sage-5.1.rc1. It looks like the notebook update
pulled in two slow modules: flaskext.babel and pytz. And we now have a
longer sys.path (from 26 to 39 entries), which makes module loading overall
slower. Especially since the filesystem is 4x slower than on my laptop for
some reason.
[vbraun@laptop sage-5.1.rc1]$ ./sage -startuptime
== Slowest module imports (excluding / including children) ==
exclude/ms include/ms #parents module name
1.583 10.143 1 sage.calculus.desolvers
1.613 1.930 1 httplib
1.639 1.911 22 string
1.727 1.730 5 urlparse
1.732 1.737 3 pickle
1.755 18.179 1 IPython.Shell
1.788 2.001 8 sage.symbolic.constants
1.807 9.756 13 sage.rings.number_field.number_field
1.862 1.866 150 sage.structure.generators
1.866 2.220 10 jinja2.utils
1.953 14.244 5 jinja2
2.097 9.478 5 sage.libs.singular.singular
2.119 14.740 192 sage.rings.integer
2.123 4.326 2 sage.monoids.all
2.198 18.640 7 sage.calculus.calculus
2.210 2.278 2 sage.combinat.sf.macdonald
2.242 2.254 2 jinja2.lexer
2.353 2.728 3 sage.schemes.elliptic_curves.heegner
2.488 14.270 16 sage.combinat.permutation
2.491 2.751 9 sage.interfaces.singular
2.716 44.095 2 sage.graphs.generic_graph
2.754 2.793 1 sage.combinat.words.paths
2.856 2.926 2 sage.libs.ppl
3.136 38.274 12 sage.functions.other
3.211 3.480 6 sage.interacts.library
3.230 18.647 26 inspect
3.419 3.472 1 sage.combinat.sloane_functions
3.579 3.579 2 _ssl
3.597 22.176 8 sage.rings.quotient_ring
3.605 46.924 14 IPython
3.610 3.620 1 doctest
3.688 11.747 4 twisted.python
3.935 8.098 25 sage.libs.pari.gen
3.999 4.002 2 platform
4.112 5.951 213 sage.misc.sageinspect
4.370 12.454 10
sage.rings.polynomial.multi_polynomial_libsingular
4.808 4.942 3 sage.libs.linbox.linbox
5.005 5.679 3 sage.matrix.matrix_mod2_dense
5.052 5.158 1 sage.libs.cremona.newforms
5.414 5.741 1 sage.misc.latex_macros
5.638 55.698 12 sage.rings.complex_double
5.925 8.790 217 sage.structure.element
6.121 6.121 1 sage.ext.c_lib
8.673 21.573 4 sage.rings.qqbar
8.807 13.434 4 sage.rings.polynomial.pbori
11.047 11.262 6 tokenize
16.645 30.675 18 sage.functions.all
18.689 692.530 3 sage.all
24.355 25.138 4 pkg_resources
60.267 418.274 239 sage
Total time (sum over exclusive time): 693.063ms
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