Hmm… sounds like a very common problem on more than just the Windows platform. 
Has anyone filed a bug report for this?  It seems like having to use the "kill 
the app" method to substitute for a normal program exit would qualify as a 
"bug"…

Rich


On Sep 12, 2013, at 12:10 PM, Diogo Girondi <[email protected]> wrote:

> I've faced this problem several times in OSX with projects loaded with R3D 
> files at full res and camera projections with large JPG files. So I don't 
> think it's exclusive to Windows.
> 
> In OSX when this happens, clearing the buffers and the disk cache will also 
> take forever, so I usually end up force quitting Nuke most of the times. It's 
> just quicker.
> 
> Ok that the scene memory usage wasn't on the low side, but...
> 
> 
> 
> iMac i7 32GB of RAM OSX 10.8.4
> 
> cheers,
> diogo
> 
> 
> 
> 
> 
> 
> On Thu, Sep 12, 2013 at 12:58 PM, Nathan Rusch <[email protected]> 
> wrote:
> I’ve gotten many complaints about this from artists as well, all running on 
> Linux. So far the best solutions are either A) kill Nuke, or B) manually 
> clear buffers before closing. The latter doesn’t really avoid the problem 
> though; just makes it less apparent.
>  
> I would love some insight into the root of this issue.
>  
> -Nathan
> 
>  
> From: Peter Crossley
> Sent: Thursday, September 12, 2013 8:53 AM
> To: [email protected]
> Subject: Re: [Nuke-users] Nuke takes *forever* to unload memory (Windows 7)
>  
> Ah, Windows 7, just noticed ;)
> 
> On 12/09/2013 16:53, Peter Crossley wrote:
>> Hi Rich, 
>> 
>> Is this in a Windows build? If so, and you're using Nuke 7.0v8 you can try 
>> setting the environment variable NUKE_USE_FAST_ALLOCATOR to 1. This might 
>> solve your problem. (Note, this is windows only!)
>> 
>> Cheers,
>> 
>> Peter.
>> 
>> On 12/09/2013 16:36, Richard Bobo wrote:
>>> Hi all,
>>>  
>>> Just wondering if other folks have an issue with Nuke taking many minutes 
>>> to unload a script from memory when it's quitting? I often end up killing 
>>> Nuke, instead of letting it finish closing on its own, since it can take 
>>> many minutes to slowly purge itself from memory! If this is a common 
>>> problem, it seems like a bug report might be apropos…  Anyone else?
>>>  
>>> Rich
>>>  
>>> 
>>> Rich Bobo
>>> Senior VFX Compositor
>>> Armstrong-White
>>> http://armstrong-white.com/
>>>  
>>> Email:  [email protected]
>>> Mobile:  (248) 840-2665
>>> Web:  http://richbobo.com/
>>> 
>>> "Destiny is not a matter of chance, it is a matter of choice; it is not a 
>>> thing to be waited for, it is a thing to be achieved."
>>> - William Jennings Bryan
>>> 
>>> 
>>> 
>>> 
>>> 
>>>  
>>> 
>>> 
>>> _______________________________________________
>>> Nuke-users mailing list
>>> [email protected], http://forums.thefoundry.co.uk/
>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>> 
> 
> 
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