i did not quite understand the down differential part. Can any one explain it. What role it plays while scaling down. because if the load is less than (upthresold - down_differential) it scales down everytime the sample duration. this is what i understood.
thank you.
/Ryan
On Thu, Sep 26, 2013 at 7:51 PM, Ryan ryanphilips19@googlemail.com wrote:
Hi,
I wanted to know if the ondemand governor scales down the frequency to a minimum when the load comes below up_threshold?
I understand that
- Every now and then, the governor work queue runs and checks for
"load" in percentage.
If load > 95 ; it bumps the frequency to maximum; ie. if the idle time is less than 5% ; the cpu will run at maximum
If load < 90% ; it bumps the frequency down little bit;
It continues to do this till minimum; So the rate of decrease of
frequency to minimum is very slow;
So, the frequency decrease to minimum will take a long time to reach minimum (depends on sampling time).
Is this correct.
/Ryan