4BSD process starvation during I/O

David Xu davidxu at freebsd.org
Thu Nov 24 00:34:47 GMT 2005


Kris Kennaway wrote:

>On Thu, Nov 24, 2005 at 07:52:30AM +0800, David Xu wrote:
>  
>
>>Kris Kennaway wrote:
>>
>>    
>>
>>>Perhaps this can be tweaked.
>>>
>>>Kris
>>>
>>>P.S. Please, no responses about how maybe someone could write a new
>>>scheduler that doesn't have this property.
>>>
>>>
>>>
>>>
>>>      
>>>
>>Can you try it again with FULL_PREEMPTION is turned on ?
>>    
>>
>
>Didn't really make a difference:
>
>  
>
This might only can be fixed when msleep no longer explicitly fiddles
thread priority, let scheduler fully control it.





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