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Petersen" To: "James E.J. Bottomley" , Peter Wang , Matthias Brugger , AngeloGioacchino Del Regno , Maramaina Naresh Cc: "Martin K . Petersen" , Alim Akhtar , Avri Altman , Bart Van Assche , Stanley Jhu , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, quic_cang@quicinc.com, quic_nguyenb@quicinc.com Subject: Re: [PATCH V6 0/2] Add CPU latency QoS support for ufs driver Date: Mon, 29 Jan 2024 21:27:09 -0500 Message-ID: <170657812656.784857.12349810743131732483.b4-ty@oracle.com> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231219123706.6463-1-quic_mnaresh@quicinc.com> References: <20231219123706.6463-1-quic_mnaresh@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-29_15,2024-01-29_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 bulkscore=0 malwarescore=0 suspectscore=0 phishscore=0 mlxscore=0 mlxlogscore=764 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401300015 X-Proofpoint-ORIG-GUID: Qw1lRoHD-ORVhe2pPJxh4GIgqthnKFHF X-Proofpoint-GUID: Qw1lRoHD-ORVhe2pPJxh4GIgqthnKFHF 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