#9129: sqrt memory leaks
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Reporter: zimmerma | Owner: AlexGhitza
Type: defect | Status: new
Priority: critical | Milestone: sage-4.4.3
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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cf http://groups.google.com/group/sage-
support/browse_thread/thread/8c18b2b91004c35a#:
{{{
sage: m = get_memory_usage()
sage: while True:
a = ZZ(randint(2^400,2^800)).sqrt()
print get_memory_usage(m)
}}}
I noticed another sqrt-related memory leak:
{{{
sage: cat leak.sage
for i in range(10^6):
Mod(2^32+1,3).sqrt()
if i % 10000 == 0:
print i, get_memory_usage()
sage: load leak.sage
0 947.37109375
10000 970.4375
20000 993.8671875
30000 1017.25
40000 1040.734375
50000 1064.19921875
...
}}}
This leaks about 23Mb per 10^^4 loops, thus about 2.3Kb per loop!
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9129>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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