Messages in this thread | ![/](/images/icornerl.gif) | | From | "Martin K. Petersen" <> | Subject | Re: [PATCH v5] scsi: ufs: Fix imprecise load calculation in devfreq window | Date | Mon, 15 Jun 2020 23:59:59 -0400 |
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On Thu, 11 Jun 2020 18:10:43 +0800, Stanley Chu wrote:
> The UFS load calculation is based on "total_time" and "busy_time" in a > devfreq window. However, the source of time is different for both > parameters: "busy_time" is assigned from "jiffies" thus has different > accuracy from "total_time" which is assigned from ktime_get(). > > Besides, the time of window boundary is not exactly the same as > the starting busy time in this window if UFS is actually busy > in the beginning of the window. A similar accuracy error may also > happen for the end of busy time in current window. > > [...]
Applied to 5.9/scsi-queue, thanks!
[1/1] scsi: ufs: Fix imprecise load calculation in devfreq window https://git.kernel.org/mkp/scsi/c/b1bf66d1d5a8
-- Martin K. Petersen Oracle Linux Engineering
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