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* James Morris <jmorris@namei.org> wrote: > On Mon, 4 Jun 2007, Ingo Molnar wrote: > > > perhaps lguest does something unusual when it idles? Does it fiddle > > sched_clock() in any way? > > One of the lguest processes calls nice(2), which seems like a long > shot, but also not impossibly related. (Note that newer patches in > the lguest queue remove this, so it'll depend on exactly which patches > you have applied). i've got 2.6.22-rc3-mm1's lguest (with a trivial boot-time crash fix in sched_clock that i ran into). But nice(2) should only cause a gentle, 20% smaller CPU bandwidth to be allocated by CFS to that thread, nothing more drastic like user-visible delays. Ingo - 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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