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Based on what parameters we can conclude that a process is in hung state.

( 100% CPU Usage?? Or if any thread is continiuosly in wait state for a

long time??? or ???? )



Can we conclude the given process is in hung state or not based on any

process or thread properties (% CPU usage etc).



How taskmanger is getting state of hung process? (Generally task manager

displays "Not responding" if any process

is hang.)



Regards,

Koti


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Koti <koti@perumalla.us>wrote:

The OS marks a process as hung when it does not respond to a window

message within 5 sec. See also SendMessageTimeout.



I guess it would depend on your definition of the term "hung".

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With best wishes,

Igor Tandetnik



With sufficient thrust, pigs fly just fine. However, this is not

necessarily a good idea. It is hard to be sure where they are going to

land, and it could be dangerous sitting under them as they fly

overhead. -- RFC 1925





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See KB article



How To Detect If an Application Has Stopped Responding

http://support.microsoft.com/?id" rel="nofollow" target="_blank">support.microsoft.com/=231844



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Cheers

Check Abdoul [VC++ MVP]

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"Koti" <koti@perumalla.us>wrote in message



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Koti wrote:

There is no definitive answer, it depends on the application.



Take a web server for example : you cannot conclude it is hung because

it do nothing (it may simply have no clients at the current time). On

the other side, a compiler that doesn't use CPU for a long time is most

probably hung.



Concerning taskmanager, it display the "Not responding" flag only for

apps that have a main window, base on wether the main window is

responsive or not (see our previous answer).



Arnaud

MVP - VC



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