Re: [PATCH v1 0/3] thermal/debugfs: Fix and clean up trip point statistics updates

From: Daniel Lezcano
Date: Mon Apr 22 2024 - 11:34:37 EST


On 22/04/2024 13:37, Lukasz Luba wrote:
Hi Rafael,

On 4/17/24 14:07, Rafael J. Wysocki wrote:
Hi Everyone,

The first patch in this series addresses the problem of updating trip
point statistics prematurely for trip points that have just been
crossed on the way down (please see the patch changelog for details).

The way it does that renders the following cleanup patch inapplicable:

https://lore.kernel.org/linux-pm/2321994.ElGaqSPkdT@kreacher/

The remaining two patches in the series are cleanups on top of the
first one.

This series is based on an older patch series posted last week:

https://lore.kernel.org/linux-pm/13515747.uLZWGnKmhe@kreacher/

but it can be trivially rebased on top of the current linux-next.

Thanks!




I've checked this patch patch set on top of your bleeding-edge
which has thermal re-work as well. The patch set looks good
and works properly.

Although, I have found some issue in this debug info files and
I'm not sure if this is expected or not. If not I can address this
and send some small fix for it.

When I read the cooling device residency statistics, I don't
get updates for the first time the state is used. It can only
be counted when that state was known and finished it's usage.

IMO it is not the right behavior, isn't it?

Do you mean the right behavior is a regression or we should expect at least the residency to be showed even if the mitigation state is not closed ?


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