linux-kernel - Re: [PATCH v8 0/4] scsi: ufs: Add Host Performance Booster Support

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Message-ID: <yq1mu37w0ig.fsf@ca-mkp.ca.oracle.com>
Date:   Fri, 07 Aug 2020 00:32:15 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Avri Altman <Avri.Altman@....com>
Cc:     Bean Huo <huobean@...il.com>,
        "daejun7.park@...sung.com" <daejun7.park@...sung.com>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "bvanassche@....org" <bvanassche@....org>,
        "tomas.winkler@...el.com" <tomas.winkler@...el.com>,
        ALIM AKHTAR <alim.akhtar@...sung.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sang-yoon Oh <sangyoon.oh@...sung.com>,
        Sung-Jun Park <sungjun07.park@...sung.com>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Jinyoung CHOI <j-young.choi@...sung.com>,
        Adel Choi <adel.choi@...sung.com>,
        BoRam Shin <boram.shin@...sung.com>
Subject: Re: [PATCH v8 0/4] scsi: ufs: Add Host Performance Booster Support


Avri,

> Martin - Are you considering to merge the HPB feature eventually to
> mainline kernel?

I promise to take a look at the new series. But I can't say I'm a big
fan of how this feature was defined in the spec.

And - as discussed a couple of weeks ago - I would still like to see
some supporting evidence from a realistic workload and not a synthetic
benchmark.

-- 
Martin K. Petersen	Oracle Linux Engineering