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> Preemption doesn't solve of course every problem. It's mainly useful to > get an event as fast as possible from kernel to user space. This can be > the mouse click or the buffer your process is waiting for. Latencies can > quickly sum up here to be sensible. The pre-emption patch doesn't change the average latencies. Go run some real benchmarks. Its lost in the noise after the low latency patch. A single inw from some I/O cards can cost as much as the latency target we hit. Its not a case of the 90% of the result with 10% of the work, the pre-empt patch is firmly in the all pain no gain camp - 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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