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> 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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