#15792: A previously fixed regression has reappeared
-------------------------------+------------------------
Reporter: SimonKing | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.2
Component: performance | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
-------------------------------+------------------------
Description changed by SimonKing:
Old description:
> In #11900, some regressions were fixed that have been introduced in
> #9138. It seems that one of the examples from #11900 shows a regression
> again:
> {{{
> sage: E = J0(46).endomorphism_ring()
> sage: %time g = E.gens()
> CPU times: user 10.27 s, sys: 0.22 s, total: 10.49 s
> Wall time: 10.63 s
> }}}
> And another example:
> {{{
> There are further examples in #11900 that I am now repeating:
> {{{
> sage: def test():
> ....: for p in prime_range(10000):
> ....: P = GF(p)['t','x','z']
> ....:
> sage: %time test()
> CPU times: user 4.95 s, sys: 0.09 s, total: 5.05 s
> Wall time: 5.05 s
> }}}
>
> With the current master, both examples take twice as much time as it used
> to be pre-#9138 and post-#11900. Alright, it's a different computer. But
> still, there seems to be an issue.
New description:
In #11900, some regressions were fixed that have been introduced in #9138.
It seems that one of the examples from #11900 shows a regression again:
{{{
sage: E = J0(46).endomorphism_ring()
sage: %time g = E.gens()
CPU times: user 10.27 s, sys: 0.22 s, total: 10.49 s
Wall time: 10.63 s
}}}
And another example:
{{{
sage: def test():
....: for p in prime_range(10000):
....: P = GF(p)['t','x','z']
....:
sage: %time test()
CPU times: user 4.95 s, sys: 0.09 s, total: 5.05 s
Wall time: 5.05 s
}}}
With the current master, both examples take twice as much time as it used
to be pre-#9138 and post-#11900. Alright, it's a different computer. But
still, there seems to be an issue.
--
--
Ticket URL: <http://trac.sagemath.org/ticket/15792#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
