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Joe Korty <l-k@mindspring.com> writes: > > I have not yet seen the patch, but one nice feature that a system call > interface > could provide is the ability to *atomically* change the cpu affinities of > sets of > processes Could you quickly explain an use case where it makes a difference if CPU affinity settings for multiple processes are done atomically or not ? The only way to make CPU affinity settings of processes really atomically without a "consolidation window" is to do them before the process starts up. This is easy when they're inherited -- just set them for the parent before starting the other processes. This works with any interface; proc based or not as long as it inherits. -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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