> > Because some machines exhibit appreciable latency in entering low power > > state via ACPI, and 1000Hz reduces their battery life. By about half, > > iirc. > > > Then the owners of such machines can use HZ=250 and leave the default > alone. Why should everyone have to bear the cost?
They need 100 really it seems, 250-500 have no real effect and on the Dell I tried 250 didn't stop the wild clock slew from the APM bios either. I played with this a fair bit on a couple of laptops. I've not seen anything > 20% saving however so I've no idea who/why someone saw 50% - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
