Hi, On 8/17/05, Peter Williams <[EMAIL PROTECTED]> wrote: > I was intrigued by the fact that zaphod(d,d) and zaphod(d,0) take longer > in real time but use less cpu. I was assuming that this meant that some > other job was getting some cpu but the schedstats data doesn't support > that. Also it wouldn't make sense anyway as you'd expect jobs doing the > same amount of work to use roughly the same amount of cpu. My latest > theory is that your machine has hyper threads and this artifact is > caused by the mechanism in the scheduler for handling tasks with > differing priority in sibling hyper thread channels. Does your system > have hyper threads?
Yes. Please see my first mail: > info: > distro: debian 3.1 > cpu: pentium 4 (ht enabled) Regards, Michal Piotrowski - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
