Re: [PATCH 3/4] thermal: devfreq_cooling: Refactor code and switch to use Energy Model

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On Thu, 16 Jan 2020 15:20:31 +0000
lukasz.luba@xxxxxxx wrote:

> diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
> index 135e5421f003..8a5f04888abd 100644
> --- a/include/trace/events/thermal.h
> +++ b/include/trace/events/thermal.h
> @@ -153,31 +153,30 @@ TRACE_EVENT(thermal_power_cpu_limit,
>  TRACE_EVENT(thermal_power_devfreq_get_power,
>  	TP_PROTO(struct thermal_cooling_device *cdev,
>  		 struct devfreq_dev_status *status, unsigned long freq,
> -		u32 dynamic_power, u32 static_power, u32 power),
> +		u32 power),
>  
> -	TP_ARGS(cdev, status,  freq, dynamic_power, static_power, power),
> +	TP_ARGS(cdev, status,  freq, power),
>  
>  	TP_STRUCT__entry(
>  		__string(type,         cdev->type    )
>  		__field(unsigned long, freq          )
> -		__field(u32,           load          )
> -		__field(u32,           dynamic_power )
> -		__field(u32,           static_power  )
> +		__field(u32,           busy_time)
> +		__field(u32,           total_time)
>  		__field(u32,           power)
>  	),
>  
>  	TP_fast_assign(
>  		__assign_str(type, cdev->type);
>  		__entry->freq = freq;
> -		__entry->load = (100 * status->busy_time) / status->total_time;
> -		__entry->dynamic_power = dynamic_power;
> -		__entry->static_power = static_power;
> +		__entry->busy_time = status->busy_time;
> +		__entry->total_time = status->total_time;
>  		__entry->power = power;
>  	),
>  
> -	TP_printk("type=%s freq=%lu load=%u dynamic_power=%u static_power=%u power=%u",
> +	TP_printk("type=%s freq=%lu load=%u power=%u",
>  		__get_str(type), __entry->freq,
> -		__entry->load, __entry->dynamic_power, __entry->static_power,
> +		__entry->total_time == 0 ? 0 :
> +			(100 * __entry->busy_time) / __entry->total_time,
>  		__entry->power)
>  );
>  

Tracing updates look fine to me. Having the division on the output
makes more sense.

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> # for tracing code

-- Steve
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