On Thu, Dec 10, 2015 at 02:15:04PM +0000, Dietmar Eggemann wrote:

On 23/11/15 14:28, Juri Lelli wrote:

quoted

The new attribute shows up as:

quoted

 /sys/devices/system/cpu/cpu*/cpu_capacity

This sysfs interface is not really needed for arm or arm64. People can
build the dt blob if they want to change the values. Less code to carry
... Let's focus on the core functionality, which is parsing cpu capacity
from dt file to task scheduler for heterogeneous systems.

That does make the tuning process much more cumbersome - users have to
rebuild and reboot to tweak the numbers rather than just tweaking the
numbers and rerunning the benchmark (which seems like something people
would want to automate).