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    DateWed, 15 Sep 2004 11:12:32 +0200
    FromAndi Kleen <>
    SubjectRe: [RFC][PATCH] new timeofday core subsystem (v.A0)
    > I really think a tickless system, for other than UML systems, is a loosing 
    > thing.  The accounting overhead on context switch (which increases as the 
    
    You can run the accounting independently at much lower frequency (10ms is
    perfectly fine as 2.4 has proven - i suspect even lower would be ok too) 
    IMHO it should be a sysctl so that users can do a trade off between
    power consumption and accounting accuracy.
    
    And there is one important special that doesn't need any accounting
    for user space at all: the idle loop. 
    It still needs some way to account interrupts, but that could be done
    in do_IRQ or also do with rather low frequency. 
    
    -Andi
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