[PyQt] Creating widget drawing benchmark test
apaku at gmx.de
Sat Apr 25 02:08:52 BST 2009
On 24.04.09 17:02:35, Brent Villalobos wrote:
> Has anyone written a widget draw-time benchmarking program? I need to
> write a test that will provide an idea of how PyQt performs with a large
> number of widgets. I'm thinking of writing an application that creates
> a grid of QPushButton widgets. The test then runs when someone pushes a
> "Go" button which calls a function that hides and shows each button. It
> would look something like this:
> def refresh():
> startTime = time.time()
> for i, b in enumerate(buttons):
> print "Hide/show buttons in %f seconds" % (time.time()-startTime)
> Is this a good test or am I not really testing what I think I'm testing?
With that you're testing how fast a QWidget can set its internal state
variables from hidden to shown. You don't test any painting performance.
If you want to do that, you'll probably have to either
- patch Qt
- or write a subclass of QPushButton which overrides paintEvent() and
then times how long a call to the base class implementation needs.
And then you should do just either a hide or a show, as doing both might
simply be discarded due to how the event queue works.
In the stairway of life, you'd best take the elevator.
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