linux-kernel - Re: [PATCH V6 0/2] Add CPU latency QoS support for ufs driver

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Date: Mon, 29 Jan 2024 21:27:09 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Peter Wang <peter.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
        Maramaina Naresh <quic_mnaresh@...cinc.com>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        Stanley Jhu <chu.stanley@...il.com>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, quic_cang@...cinc.com,
        quic_nguyenb@...cinc.com
Subject: Re: [PATCH V6 0/2] Add CPU latency QoS support for ufs driver

On Tue, 19 Dec 2023 18:07:04 +0530, Maramaina Naresh wrote:

> Add CPU latency QoS support for ufs driver. This improves random io
> performance by 15% for ufs.
> 
> tiotest benchmark tool io performance results on sm8550 platform:
> 
> 1. Without PM QoS support
> 	Type (Speed in)    | Average of 18 iterations
> 	Random Read(IPOS)  | 37101.3
> 	Random Write(IPOS) | 41065.13
> 
> [...]

Applied to 6.9/scsi-queue, thanks!

[1/2] ufs: core: Add CPU latency QoS support for ufs driver
      https://git.kernel.org/mkp/scsi/c/2777e73fc154
[2/2] ufs: ufs-mediatek: Migrate to UFSHCD generic CPU latency PM QoS support
      https://git.kernel.org/mkp/scsi/c/0652205b4ce2

-- 
Martin K. Petersen	Oracle Linux Engineering