Re: [Lsf-pc] [LSF/MM TOPIC] Congestion

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On Tue 31-12-19 04:59:08, Matthew Wilcox wrote:
> 
> I don't want to present this topic; I merely noticed the problem.
> I nominate Jens Axboe and Michael Hocko as session leaders.  See the
> thread here:

Thanks for bringing this up Matthew! The change in the behavior came as
a surprise to me. I can lead the session for the MM side.

> https://lore.kernel.org/linux-mm/20190923111900.GH15392@xxxxxxxxxxxxxxxxxxxxxx/
> 
> Summary: Congestion is broken and has been for years, and everybody's
> system is sleeping waiting for congestion that will never clear.
> 
> A good outcome for this meeting would be:
> 
>  - MM defines what information they want from the block stack.

The history of the congestion waiting is kinda hairy but I will try to
summarize expectations we used to have and we can discuss how much of
that has been real and what followed up as a cargo cult. Maybe we just
find out that we do not need functionality like that anymore. I believe
Mel would be a great contributor to the discussion.


>  - Block stack commits to giving them that information.

-- 
Michal Hocko
SUSE Labs



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