[ruby-core:42288] Re: Why Ruby 1.9 GUI hangs if i do any intensive computation in separate Ruby thread?

>> the GIL is *not* supposed to lift if some threads enters native code...

In such case, why background thread works at all, causing 100% CPU
load? If entering native code (tcl/tk implementation in mainloop())
will not lift GIL, it will be only Tk GUI being executed. And in my
example i can see opposite - Ruby code is executed and Tk GUI hangs
badly.

On Tue, Jan 31, 2012 at 7:44 PM, Amichai Teumim <[e-mail]> wrote:
>
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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 =3D 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 ) :
>> > =A0 while True :
>> > =A0 =A0 a =3D 1
>> > WorkThread().start()
>> > Tk().mainloop()
>> >
>> > What i'm doing wrong?
>> >
>>
>>
>