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SubjectRe: [PATCH 1/3 for-5.4/block] iocost: better trace vrate changes
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On 9/26/19 1:02 AM, Tejun Heo wrote:
> vrate_adj tracepoint traces vrate changes; however, it does so only
> when busy_level is non-zero. busy_level turning to zero can sometimes
> be as interesting an event. This patch also enables vrate_adj
> tracepoint on other vrate related events - busy_level changes and
> non-zero nr_lagging.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> ---
> Hello, Jens.
>
> I've encountered vrate regulation issues while testing on a hard disk
> machine. These are three patches to improve vrate adj visibility and
> fix the issue.

Applied 1-3 for 5.4, thanks Tejun.

--
Jens Axboe

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