Alan Jenkins wrote: > Q1. I know my BIOS only supports C1. It has the C1E thing that linux > doesn't seem to notice. I'm assuming C1E is working properly though. > Why isn't any "Avg residency" information shown? I'd have thought linux > could track this on any computer, not just "Mobile CPUs".
At this point Linux doesn't track C1 :( I'd love to get that changed.... C1E is basically a variant of C1 where the processor also goes to the lowest voltage automatically... it's fully OS transparent. > Q2. Any ideas about hibernate.sh? It's the Ubuntu hibernation script > which I run manually. But it's definitely not running now - I checked > "ps -ax|grep hibernate". Maybe hibernation is spawning a periodic timer > that won't go away? Looks very buggy to me. it probably started the ondemand governor; if that's the case powertop 1.8 + a 2.6.23 kernel will no longer show this. > > Q3. My computer has a HPET. I have to patch the kernel to get the HPET > acpi table. It seems to be working: > but the tsc clocksource is preferred, since I have fixed tscs (so > /proc/cpuinfo tells me, yay). Is this OK, or - once I have NO_HZ for my > shiny x86_64 kernel, will I need to force HPET in order to get the full > benefit? there's 2 things hpet is used for: * "what time is it" function similar to a watch * "wake me up in 2 minutes" function similar to an alarm clock tsc is only a watch, not an alarm clock... so even if tsc is used for the "what time is it" question, it's still useful to have hpet for the "wake me up in a bit" function... Does this make sense or should I try to explain this better? _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
