Alexander Kolbasov wrote: > Bill Holler <Bill.Holler at sun.com> wrote: > > > Bill> It will be useful to have c-state information observable (including > latency > Bill> and power savings) during development and testing. Should c-state > Bill> information be in a kstat such as the cpu_info kstat? > > Isn't c-state information extremely transient? I am wondering what value > can you get if it is placed in kstats. IMO something like total time in > various states might be more useful (if it is possible to obtain). > PowerTop conveys the total time in various c-states (over a given sampling interval). I'm not sure how useful the "total time since the system booted" would be, since that would probably include periods of time where the system was busy.
-Eric
