[PATCH 00/17] coresight: next v4.12-rc4

Sudeep Holla sudeep.holla at arm.com
Thu Jun 15 01:41:22 PDT 2017



On 15/06/17 04:34, Kim Phillips wrote:
[...]

> 
> How does one tell whether writes to /dev/cpu_dma_latency are effective?
> 
Watch /sys/devices/system/cpu/cpu*/cpuidle/state*/{usage,time}, they
shouldn't tick based on the value set to cpu_dma_latency.

E.g. a value of 0 should stop entering all the idle states.

-- 
Regards,
Sudeep



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