but if you run the rebuild function in the main function, i guess before
the callback, its super fast to build the 100 knobs. but then when you hit
the rebuild function its getting slower with every knob you add.
is there a flag or something to exclude knobs from the knobChanged callback?
2015-02-21 0:12 GMT+01:00 Nathan Rusch <nathan_ru...@hotmail.com>:
> In 8.0v6, I get consistent (albeit slow) performance in my own quick test,
> averaging a fraction of a second for removal and about 5.5 seconds to add
> 100 knobs, followed by maybe 4 seconds for Nuke to actually redraw the
> panel. 9.0 seems to be slightly slower. Disabling undo doesn't make a
> difference either.
>
>
> class PerfTest(nukescripts.panels.PythonPanel):
> def __init__(self):
> super(PerfTest, self).__init__('PerfTest', 'something')
> self.addKnob(nuke.PyScript_Knob('rebuild'))
> self.boolKnobs = []
>
> def knobChanged(self, knob):
> if knob.name() == 'rebuild':
> self.rebuild()
>
> def rebuild(self):
> mark = time.time()
> for k in reversed(self.boolKnobs):
> self.removeKnob(k)
> self.boolKnobs = []
> mark 2 = time.time()
> print 'knob removal:', mark2 - mark
> for i in xrange(100):
> k = nuke.Boolean_Knob('bool_' + str(i))
> k.setFlag(nuke.STARTLINE)
> self.addKnob(k)
> self.boolKnobs.append(k)
> print 'knob creation:', time.time() - mark2
>
>
> -Nathan
>
>
>
> From: michael vorberg
> Sent: Tuesday, February 17, 2015 4:31 AM
> To: Nuke Python discussion
> Subject: [Nuke-python] nukescript panel add button
>
>
> hi,
>
> i create a nukescript panel which creates a some (boolean) buttons for
> nodes in my script. i filter these nodes in the panel via a user text input.
>
> if i start my panel it set a default filter and everything is fine and
> fast. when i hit my update button, i execute a callback function
> (knobChanged) and to delete all the create boolean knobs and search again
> in the nuke script and create new knobs.
> here everything gets slower over time, but i call the same functions as in
> the startup.
>
> i guess it will now call the knobChanged callback for every knob i create
> to look if they hit a condition in there.
>
> i messured the execution time in the functions and i can see clearly a
> dramatic increase in the time taken to create the knobs.
>
> startup call:
>
>
> search time: 0.00189313135161
>
> clear list time: 2.67769610218e-06
>
> list length 24
>
> added knob time: 5.93556032982e-05
>
> added knob time: 5.71241898797e-05
>
> added knob time: 5.35539275006e-05
>
> added knob time: 5.35539284101e-05
>
> added knob time: 5.35539284101e-05
>
> added knob time: 5.48927755517e-05
>
> added knob time: 5.35539275006e-05
>
> added knob time: 5.44464937775e-05
>
> added knob time: 5.35539275006e-05
>
> added knob time: 5.4446492868e-05
>
> added knob time: 5.44464937775e-05
>
> added knob time: 5.53390582354e-05
>
> added knob time: 5.48927764612e-05
>
> added knob time: 5.48927764612e-05
>
> added knob time: 5.53390582354e-05
>
> added knob time: 5.53390591449e-05
>
> added knob time: 5.62316236028e-05
>
> added knob time: 5.6677907196e-05
>
> added knob time: 8.30085882626e-05
>
> added knob time: 5.04299487147e-05
>
> added knob time: 5.13225149916e-05
>
> added knob time: 5.08762313984e-05
>
> added knob time: 4.9983666031e-05
>
> added knob time: 5.17687967658e-05
>
> total knob time: 0.00277811001069
>
>
>
> update call:
>
> search time: 0.00190384213693
>
> clear list time: 3.12397969537e-06
>
> list length 24
>
> added knob time: 0.0111396632883
>
> added knob time: 0.0114480446564
>
> added knob time: 0.0120420469739
>
> added knob time: 0.0123955028985
>
> added knob time: 0.0129551414448
>
> added knob time: 0.0135629785273
>
> added knob time: 0.0142319563429
>
> added knob time: 0.0150205379314
>
> added knob time: 0.0158385741797
>
> added knob time: 0.0169823968236
>
> added knob time: 0.0177259038564
>
> added knob time: 0.0187371805287
>
> added knob time: 0.0198203087202
>
> added knob time: 0.0210083133543
>
> added knob time: 0.0222213098223
>
> added knob time: 0.0236030011629
>
> added knob time: 0.0248650887297
>
> added knob time: 0.0262856066684
>
> added knob time: 0.0277529842924
>
> added knob time: 0.0292618662115
>
> added knob time: 0.0308528641535
>
> added knob time: 0.0329334342532
>
> added knob time: 0.0344815890521
>
> added knob time: 0.0362542240655
>
>
>
> total knob time: 0.502958408235
>
>
>
> if i have around 100 nodes in my list, the time for the last knobs is over
> 0.5 seconds.
>
>
>
> is there something i can do to prevent that?
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
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