[ruby-core:42287] Re: Why Ruby 1.9 GUI hangs if i do any intensive computation in separate Ruby thread?

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On Tue, Jan 31, 2012 at 4:12 PM, Haase, Konstantin <
[e-mail]> wrote:

> the GIL is *not* supposed to lift if some threads enters native code...
>
> On Jan 31, 2012, at 08:05 , Grigory Petrov wrote:
>
> > Hello
> >
> > Ruby 1.9 suppose to have native threads, and GIL is supposed to lift
> > if some threads enters native code (like GUI toolkit main loop or C
> > implementation of some Ruby lib). But if i start following simple code
> > sample that displays GUI in main thread and do some basic math in
> > separate thread - the GUI will hang out badly and dragging window will
> > redraw ~ every 10 seconds or so :(. I have checked with different GUI
> > toolkit, Qt (qtbindings gem) - it behaves exactly same. Tested with
> > Ruby 1.9.3-p0 on Windows 7 and OSX 10.7
> >
> > require 'tk'
> > require 'thread'
> > require 'rexml/document'
> > Thread.new { loop { a = 1 } }
> > TkRoot.new.mainloop()
> >
> > Same code in Python works fine without any GUI hangs:
> >
> > from Tkinter import *
> > from threading import *
> > class WorkThread( Thread ) :
> > def run( self ) :
> >   while True :
> >     a = 1
> > WorkThread().start()
> > Tk().mainloop()
> >
> > What i'm doing wrong?
> >
>
>
>