linux-kernel - Re: [PATCH V3] scsi: ufs: ufs-qcom: Change UFS devfreq timer to delayed

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Date:   Sun, 23 Jul 2023 16:32:25 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Nitin Rawat <quic_nitirawa@...cinc.com>
Cc:     mani@...nel.org, quic_cang@...cinc.com, stanley.chu@...iatek.com,
        bvanassche@....org, quic_asutoshd@...cinc.com, avri.altman@....com,
        martin.petersen@...cle.com, beanhuo@...ron.com,
        konrad.dybcio@...aro.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, agross@...nel.org,
        andersson@...nel.org, jejb@...ux.ibm.com,
        linux-arm-msm@...r.kernel.org, quic_ziqichen@...cinc.com
Subject: Re: [PATCH V3] scsi: ufs: ufs-qcom: Change UFS devfreq timer to
 delayed


Nitin,

> Devfreq uses the default DEVFREQ_TIMER_DEFERRABLE mode which uses the
> deferred timer for scheduling the devfreq load monitor function. This
> causes the load monitoring to be done only with non-idle CPUs and not
> making use of the idle CPUs.
>
> Hence, use the DEVFREQ_TIMER_DELAYED mode which uses the delayed timer
> thereby making use of idle CPUs as well for load monitoring.

Applied to 6.6/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering