How to reduce "CPU + Wait for CPU" or "CPU + CPU wait"
lately i have been seeing a lot of "CPU + Wait for CPU" as a wait in the sql performance issues i am handling....i see that even though CPU is only 50% utilized the wait event is still seen.
what is it exactly and is there a way to reduce this wait ...
Elapsed time of a sql= DB time of the sql(CPU + non-idle wait event) + CPU runqueue time
i see lot of time spending in "CPU runqueue time"....Please advice.