On Fri, 2007-09-14 at 13:06 -0700, Alexander Kolbasov wrote:
> Just being Devil's advocate. I don't doubt that you should be able to
> improve the measurement significantly. I just think that the notion of
> CPU utilization is a vague and processor dependent concept, and you
> shouldn't expect to get any perfect answers.
IMHO, one test on whether the change is an improvement is whether we're
providing data useful for answering higher level questions.
For instance, for a workload I care about (building parts of solaris
from source), do I have make parallelism set optimally for this machine?
mpstat on a multi-strand/hyperthreaded system isn't particularly useful
for that.
- Bill
