[PyQt] Debug potential memory leaks

[Phil Thompson]

On 07/04/2015 8:47 pm, Andreas Pakulat wrote:
> Hi,
> 
> I'm having a small 'systray' application that monitors a jenkins 
> service
> and it seems there's some kind of memory leak, especially on MacOSX. 
> After
> having it run for a while (with the machine going to sleep now and 
> again)
> it starts eating quite some memory - if I understand 
> top/ActivityMonitor
> correctly - and amd wondering now how I'd best debug a PyQt 
> application's
> memory consumption.
> 
> So what tools do you guys usually use to debug such memory leaks? I've
> tried valgrind on Linux but there's no good hint there, possibly also 
> due
> to the way Python works.

You could try a debug version of Python that will track objects. If that 
shows objects are not being collected then it is probably a PyQt 
problem. Otherwise it might be more likely to be a Qt problem.

Phil