Re: [perl-win32-gui-hackers] [win32-gui] Re: Possible WinXP memory leak [Was:Commit]

[Robert M. <rm...@po...>]

Jeremy White wrote:
>>> Does it still leak if we only create a window (without the button)?
>> YES!
> 
> For me, I get no leak when just the window. I also played with a few other 
> controls, and they leak too (a listview seemed to leak more than a button). 
> Adding a child window to the parent window almost doesn't leak - a 4k leak 
> every 30 seconds or so.

I can confirm that I don't see this on w2k either, so I afraid that I'm 
not going to be much use in helping to track this down.

>>> Can someone run this with a fixed number of iterations, and tell me how
>>> much memory is leaked per iteration?
>> 56 - 60 K each iteration
> 
> Hummm - I seem to leak about 108 bytes per itteration.

I find the 108 byte figure more believable.  At 56-60k per loop 
iteration you'd run out of memory pretty quickly, and there's nothing we 
allocate from the perl side that would be causing that much memory to be 
allocated.

>> Start code and figures vary but average 40% CPU to Perl.exe and 30% CPU to
>> Explorer.exe, the figures change between these two executables by as much 
>> as
>> 10%, however the total between the two stays at 70% total CPU.
>>
>> When terminating with Ctrl-C, note that perl.exe died straight away however
>> Explorer.exe took a few moments more to die and return the memory.

Sorry, but for now you're on your own with this one.

Regards,
Rob.