#13361: Report startuptime exclusive children
--------------------------------+-------------------------------------------
Reporter: vbraun | Owner: tbd
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.3
Component: performance | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Old description:
> Right now `sage -startuptime` reports startup time including children.
> This isn't particularly useful since that just means that the first
> module (which loads most of sage as dependencies) is the slowest. The
> more meaningful number is exclusive children, which can tell us if the
> module does computations during initialization.
>
> Apply [attachment:trac_13361_startuptime.patch] to the scripts
> (`SAGE_LOCAL/bin`) repository.
New description:
Right now `sage -startuptime` reports startup time including children.
This isn't particularly useful since that just means that the first module
(which loads most of sage as dependencies) is the slowest. The more
meaningful number is exclusive children, which can tell us if the module
does computations during initialization.
* Apply [attachment:trac_13361_startuptime.patch] to the scripts
(`SAGE_LOCAL/bin`) repository.
* Apply [attachment:trac_13361_startuptime_args.patch] to the root
repository.
--
Comment (by vbraun):
Now with disabled garbage collector (it did skew timings) and with
optional argument a module that you want to know more about:
{{{
[vbraun@laptop sage]$ sage -startuptime sage.geometry.fan
========================================================================
== Slowest modules imported by sage.geometry.fan =======================
exclude/ms include/ms #parents module name
0.114 51.802 3 sage.geometry.all
0.220 0.240 1 sage.schemes.toric.library
0.353 0.414 1
sage.geometry.triangulation.fan_refinement
0.404 0.492 2 sage.geometry.fan_morphism
0.688 0.962 3 sage.schemes.toric.variety
== Slowest modules importing sage.geometry.fan =========================
exclude/ms include/ms #parents module name
0.526 2.551 19 collections
0.607 139.657 51 sage.misc.all
0.617 67.490 5 sage.combinat.posets.posets
0.770 2.764 4 sage.geometry.lattice_polytope
0.779 49.771 5 sage.geometry.cone
1.123 1.126 175 sage.misc.abstract_method
1.243 1.243 180 sage.misc.lazy_attribute
1.284 66.645 230 sage.rings.all
1.350 1.350 63 copy
3.897 5.520 218 sage.misc.sageinspect
== module sage.geometry.fan ============================================
Time to import: 0.760ms
Cumulative time: 0.835ms
Names: fan, sage.geometry.fan
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13361#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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