On Sat, 19 Jun 2010 21:49:37 +0200 Andi Kleen <andi@xxxxxxxxxxxxxx> wrote: > > Here we have the opportunity to get real good information.. we KNOW > > now an interrupt is coming, and we can even estimate how long it'll > > be... Even for the first few after a long time, before a pattern > > emerges. > > Ok but I thought the driver would just fill in a single number > likely. Is that really that good information? Tejun suggested tracking this per handler, I'm assuming that instead of the driver passed number > > Alternatively each driver would need to implement some dynamic > estimation algorithm, but that would be just mostly equivalent > to having it all in the idle governour? that's the whole point... let the irq layer track this stuff, and inform the governor. the governor does not know irqs are expected.. with tejun's change, the irq layer at least will. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
