Re: [PATCH v5 1/2] scsi: ufs: Introduce hba performance monitor sysfs nodes

From: Bean Huo
Date: Wed May 12 2021 - 16:51:37 EST


On Wed, 2021-04-21 at 19:28 -0700, Can Guo wrote:
> +
>
> +static DEVICE_ATTR_RW(monitor_enable);
>
> +static DEVICE_ATTR_RW(monitor_chunk_size);
>
> +static DEVICE_ATTR_RO(read_total_sectors);
>
> +static DEVICE_ATTR_RO(read_total_busy);
>
> +static DEVICE_ATTR_RO(read_nr_requests);
>
> +static DEVICE_ATTR_RO(read_req_latency_avg);
>
> +static DEVICE_ATTR_RO(read_req_latency_max);
>
> +static DEVICE_ATTR_RO(read_req_latency_min);
>
> +static DEVICE_ATTR_RO(read_req_latency_sum);
>
> +static DEVICE_ATTR_RO(write_total_sectors);
>
> +static DEVICE_ATTR_RO(write_total_busy);
>
> +static DEVICE_ATTR_RO(write_nr_requests);
>
> +static DEVICE_ATTR_RO(write_req_latency_avg);
>
> +static DEVICE_ATTR_RO(write_req_latency_max);
>
> +static DEVICE_ATTR_RO(write_req_latency_min);
>
> +static DEVICE_ATTR_RO(write_req_latency_sum);

Can,

I like this series of patches, which can help me monitor UFS
performance online. I have a suggestion, how do you think that we add
this to ufs-debugfs. Then we don't need to poll each parameter one by
one, just one interface.

Bean