Apps Identifying Jitter-Related Jank

[Chihwei]

Hi,

I'm reading the page of Identifying Jitter-Related Jank and confused about increasing CONFIG_HZ.
In "Threads that run too long" section, G claims it's good to increase CONFIG_HZ and sets CONFIG_HZ to 300 for Nexus. However, why is the final value 300 instead of 1000?​

 

[Deleted User]

Isn't he saying that 300 is the default value for Nexus devices?

 

[Chihwei]

Yes, not saying 300 is the default value for Nexus devise. Besides, I think they will adjust in the future.
However, why setting 300 instead of 1000 is my question. >''< Isn't higher HZ better?

 

[Deleted User]

Yes, not saying 300 is the default value for Nexus devise. Besides, I think they will adjust in the future.
However, why setting 300 instead of 1000 is my question. >''< Isn't higher HZ better?

Higher clock speed sounds better for performance, but may not speed the system up. The value of 300 will have been settled on through testing and observation. A higher value may also cause increased power consumption.