Re: [PATCH v1 2/3] scsi: ufs: Optimize host lock on transfer requests send/compl paths

On 5/28/2021 12:30 AM, Avri Altman wrote:

quoted

quoted

Hi Bart,
No it's not necessary to serialize both the paths. I think this series
attempts to remove this serialization to a certain degree, which is
what's giving the performance improvement.

Btw, Is this performance improvement is on top of rq_affinity 2 or 1?

It's on 1.

Thanks,
Avri

quoted

quoted

Even if multiqueue support would be available in the future, I think
this change is apt now for the current available specification.

I agree - this looks like the harbinger of a major change,
And going further with respect of hw queues,
will need the spec support - e.g. doorbell per lane, etc.

Thanks,
Avri

quoted

quoted

Thanks,

Bart.

Thanks,
-asd

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
Forum,
Linux Foundation Collaborative Project

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
Linux Foundation Collaborative Project