Messages in this thread | | | Date | Mon, 13 Dec 2004 12:08:52 +0100 | From | Andrea Arcangeli <> | Subject | Re: dynamic-hz |
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On Mon, Dec 13, 2004 at 11:43:21AM +0100, Pavel Machek wrote: > Doing lot less per timer tick is not going to help much... You cpu
I also doubt we can do significantly less per timer tick. There's some new code and lock like the monotonic_lock but that's going to be lost in the noise, the irq highlevel interface has some overhead too, but that's going to be lost in the noise too. The rest pretty much cannot be avoided. I didn't measure it but I suspect the slowest part might actually be the outb_p/inb_p and the enter/exit kernel. - 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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