#12313: Fix yet another memory leak caused by caching of coercion data
--------------------------------------------------------+-------------------
Reporter: SimonKing | Owner:
Type: defect | Status:
needs_work
Priority: major | Milestone:
sage-5.7
Component: memleak | Resolution:
Keywords: coercion weak dictionary | Work issues:
Report Upstream: N/A | Reviewers: Simon
King, Jean-Pierre Flori, John Perry, Nils Bruin
Authors: Simon King, Jean-Pierre Flori | Merged in:
Dependencies: #715, #11521, #12215, #13746, #13378 | Stopgaps:
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Changes (by jdemeyer):
* status: positive_review => needs_work
Comment:
Unfortunately, the combination #13378 + #12215 + #12313 gives a serious
slowdown for
{{{
from sage.combinat.sf.k_dual import DualkSchurFunctions
Sym = SymmetricFunctions(QQ['t'].fraction_field())
dks4 = DualkSchurFunctions(Sym.kBoundedQuotient(4))
time TestSuite(dks4).run()
}}}
from 8 seconds before the patches and 90 seconds with the patches.
Just #13378 alone is fine.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12313#comment:276>
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