Seems this is caused by commit
rev10451 Merge SPCanvasArena caching layer work
Further analysis shows that bounds_exact_transformed() is not actually all the problem, pixman_op has the biggest chunk of CPU cycles. Here's a call graph, recorded for a 'zoom on empty space in otherwise complex document' event. Inkscape 0.48.2 doesn't have the problem so for now, i have rolled back.
Krzysztof (tongue tumbler alert, lol) please look at this again ;)
Seems this is caused by commit exact_transform ed() is not actually all the problem, pixman_op has the biggest chunk of CPU cycles. Here's a call graph, recorded for a 'zoom on empty space in otherwise complex document' event. Inkscape 0.48.2 doesn't have the problem so for now, i have rolled back.
rev10451 Merge SPCanvasArena caching layer work
Further analysis shows that bounds_
Krzysztof (tongue tumbler alert, lol) please look at this again ;)