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    DateWed, 7 May 2008 15:35:38 +0100
    FromAlan Cox <>
    SubjectRe: AIM7 40% regression with 2.6.26-rc1
    > But my preferred option would indeed be just turning it back into a 
    > spinlock - and screw latency and BKL preemption - and having the RT people 
    > who care deeply just work on removing the BKL in the long run.
    
    It isn't as if the RT build can't use a different lock type to the
    default build.
    
    > Is BKL preemption worth it? Sounds very dubious. Sounds even more dubious 
    > when we now apparently have even more reason to aim for removing the BKL 
    > rather than trying to mess around with it.
    
    We have some horrible long lasting BKL users left unfortunately.
    
    Alan
    
    
    
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