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On Wed, 25 May 2005, Tom Vier wrote: > If irqs are run in threads, which are scheduled, how are they scheduled? > fifo? What's the point then; simply to let the top half run to completion > before another top half starts? If it's about setting scheduling priorities > for irq threads, some one top half can prempt another, why not just use irq > levels, like bsd (using pic's is slower than using threads?)? > Long interrupt handlers can be interrupt by _tasks_, not only other interrupts! An audio application running in userspace can be scheduled over an ethernet interrupt handler copying data from the controller into RAM (without DMA). Esben - 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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