I have a large perl/Tk program which uses many modules, and I am trying to trace where it's spending its time after I destroy the main window. It takes several seconds for the program to end, and during that time the CPU is maxed out. I tried Devel::AutoProfiler and it failed with "deep recursion."

I put a simple trace into the DESTROY method of Tk::Widget.pm: 

sub DESTROY
{
 my $w = shift;
 print ref($w) . " destroy called\n";
 $w->destroy if ($w->IsWidget);
 print ref($w) . " destroy done\n";
}

[download]
It looks like the slowdown takes place after all the widgets are destroyed, including MainWindow. Possibly it's happening in the global destroy phase.

Is there any way to trace what is happening in the clean-up phase, or does anyone have suggestions on where Windows might be spending so much time? The same program ends quickly under Linux.

In reply to Slow wind-up in Windows? by tall_man

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