#5970: Weak references in Polynomial Ring cache
--------------------------------------------+-------------------------------
Reporter: SimonKing | Owner: malb
Type: defect | Status: needs_info
Priority: critical | Milestone: sage-4.6.2
Component: commutative algebra | Keywords: polynomial ring
cache weak reference
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: regression for test_ec_leak? |
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Comment(by SimonKing):
I'd like to revive that ticket.
With `sage-4.6.2.alpha0` and the tickets from #8611, #10467 and #10496
(all with positive review), I obtain:
{{{
sage: attach test.sage
sage: %time test_poly_leak(10^5)
CPU times: user 11.63 s, sys: 0.16 s, total: 11.79 s
Wall time: 11.85 s
330.4296875
sage: %time test_ec_leak(10^5)
CPU times: user 41.47 s, sys: 0.14 s, total: 41.61 s
Wall time: 42.11 s
193.3828125
sage: %time test_pc_leak(10^5)
CPU times: user 13.24 s, sys: 0.04 s, total: 13.29 s
Wall time: 13.29 s
57.25390625
}}}
Additionally applying Martin's patch from here, one has
{{{
sage: attach test.sage
sage: %time test_poly_leak(10^5)
CPU times: user 9.09 s, sys: 0.06 s, total: 9.14 s
Wall time: 9.26 s
77.1015625
sage: %time test_ec_leak(10^5)
CPU times: user 51.72 s, sys: 0.22 s, total: 51.94 s
Wall time: 52.49 s
448.65234375
sage: %time test_pc_leak(10^5)
CPU times: user 13.64 s, sys: 0.03 s, total: 13.68 s
Wall time: 13.85 s
57.796875
}}}
So, the situation has not changed: We need to look into the elliptic
curves code.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5970#comment:18>
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