Pattern along path extremely slow with ellipse pattern

[hash]

In effects editor(ctrl+shift+7) when editing width of spiro line, I've clicked down arrow of spinbox with RBM, and Inkscape is hanging.

Inkscape 0.48.0 r9654 on XP SP3

[jazzynico (jazzynico)]

Reproduced on Ubuntu 10.04 and Windows XP, Inkscape 0.48 and trunk revision 9754.

Steps:
1. Draw a path (not necessary spiro) with the pencil tool (ellipse shape).
2. Open the LPE editor and select the Pattern along path effect.
3. Right click on one of the arrows of the Width parameter (it sets this parameter to 1000000 and -1000000).
4. Inkscape hangs (about 30 seconds).

Works correctly with triangle in and triangle out shapes. The result is not wonderful but it doesn't hang...
Also reproduced with 0.47 and 0.46 on Windows XP (with 0.46, I applied the effect manually).

Performance issue?

[jazzynico (jazzynico)]

Not as severe as a real crash, reducing importance.

[su_v (suv-lp)]

reproduced with Inkscape 0.48+devel r9752 on OS X 10.5.8 (gtk2 @2.20.1 (x11))

[Jabiertxof (jabiertxof)]

seems fixed with https://bugs.launchpad.net/inkscape/+bug/1535444/comments/3

[jazzynico (jazzynico)]

Bug reproduced on Windows XP (32-bit) with 0.48.5 (20 seconds to render), but not reproduced with 0.91 and trunk rev. 14998 (about 1s for both).
@Jabier - It seems the bug was already fixed in 0.91. Could you please test and confirm?
You patch possibly improved the rendering performances, but the biggest improvement was in 0.91.

[Jabiertxof (jabiertxof)]

@jazzynico can confirm I coulden't reproduce it with 0.91, so, is not my patch.