This *sucks*: ---------------------------------------------------------------------- | Sage Version 3.2.2.alpha0, Release Date: 2008-12-05 | | Type notebook() for the GUI, and license() for information. | ---------------------------------------------------------------------- sage: f1(x) = -1 sage: f2(x) = 2 sage: f = Piecewise([[(-pi,-pi/2),f1],[(-pi/2,0),f2],[(0,pi/2),f1], [(pi/2,pi),f2]]) sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.01 s, sys: 0.79 s, total: 2.80 s Wall time: 10.23 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 1.88 s, sys: 1.01 s, total: 2.89 s Wall time: 13.01 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 1.96 s, sys: 0.98 s, total: 2.94 s Wall time: 17.18 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.06 s, sys: 0.88 s, total: 2.94 s Wall time: 20.83 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.03 s, sys: 0.98 s, total: 3.01 s Wall time: 24.82 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.06 s, sys: 0.97 s, total: 3.03 s Wall time: 27.56 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.31 s, sys: 1.06 s, total: 3.38 s Wall time: 30.36 s sage: time P = f.plot_fourier_series_partial_sum_filtered(15,pi,[1] *15,-5,5) CPU times: user 2.32 s, sys: 0.86 s, total: 3.18 s Wall time: 33.04 s sage:
I discovered the above while poking around whether we had a performance regression due to "#4693: Mike Hansen: cleanup work in sage/functions/piecewise.py". The good new is that there isn't any, in most cases the new code is faster while in some cases it is slightly slower. But every time I rerun any of the plotting tests that are marked "#long time" the time goes up and it is not spend in Sage, but in Maxima. So: Am I doing something dumb? Are we telling Maxima to do dumb things? Or is this a problem with Maxima? I don't have the time to poke around here in the next couple days, so if anybody wants to investigate I am more than happy to find out what is wrong here. Cheers, Michael --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
