#11388: Speed regression in #10548
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Reporter: robertwb | Owner: tbd
Type: defect | Status: needs_info
Priority: critical | Milestone: sage-4.7.1
Component: coercion | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Robert Bradshaw
Merged: | Dependencies:
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Comment(by lftabera):
Ok, let me understand the code. There is a recording of exceptions that
are very convenient for debugging. The problem is that it produces an
important performance penalty. This is solved with record_exceptions()
that controls the attribute _record_exceptions which is the flag that
controls.
Just one thing. Each time that record_exceptions is called, the exception
stack cached is cleared so:
{{{
sage: cm = sage.structure.element.get_coercion_model()
sage: cm.record_exceptions()
sage: cm._test_exception_stack()
sage: cm.record_exceptions()
sage: cm.exception_stack()
[]
}}}
Is this the intended behavior? It is trivially seen from the code but I
think it should be documented.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11388#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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