Rahul,
I will run hackbench with your patch and share the results. Lets see if we can get some measurable differences on the performance side.
Regards, Sarbojit
------- Original Message ------- Sender : Alex Shialex.shi@linaro.org Date : Aug 28, 2015 12:25 (GMT+05:30) Title : Re: [PATCH 1/1] HMP: Do not send IPI if core already waked up
Seems it is big saving...
On 08/25/2015 11:58 PM, Rahul Khandelwal (Rahul Khandelwal) wrote:
Dear Sarbojit,
Agreed with your point, thanks for raising it..
There was one issue in the total no of interrupt count in the previous chart preparation, actually the total no of interrupt is equal to the interrupt sent to Idle core.
On an average we are saving more than 25% of the IPIs sent to big domain CPUs. I just updated the below mentioned chart with the related data.
????? ??? ?? ?? ?? ----------------------------------------------------------------------+ The Tao lies beyond Yin and Yang. It is silent and still as a pool of water. | It does not seek fame, therefore nobody knows its presence. | It does not seek fortune, for it is complete within itself. | It exists beyond space and time. | ----------------------------------------------------------------------+