Date:   Wed, 24 Nov 2021 19:54:49 +0900
From:   Alexey Avramov <hakavlad@inbox.lv>
To:     Mel Gorman <mgorman@techsingularity.net>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org, mhocko@suse.com,
        vbabka@suse.cz, neilb@suse.de, akpm@linux-foundation.org,
        corbet@lwn.net, riel@surriel.com, hannes@cmpxchg.org,
        david@fromorbit.com, willy@infradead.org, hdanton@sina.com,
        penguin-kernel@i-love.sakura.ne.jp, oleksandr@natalenko.name,
        kernel@xanmod.org, michael@michaellarabel.com, aros@gmx.com,
        hakavlad@gmail.com
Subject: Re: mm: 5.16 regression: reclaim_throttle leads to stall in
 near-OOM conditions
Message-ID: <20211124195449.33f31e7f@mail.inbox.lv>
In-Reply-To: <20211124103550.GE3366@techsingularity.net>
References: <20211124011954.7cab9bb4@mail.inbox.lv>
        <20211124103550.GE3366@techsingularity.net>
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> it does eventually get killed OOM

However, a full minute freeze can be a great evil in many situations - 
during such a freeze, the system is completely unresponsive. 

So my next question is: How reasonable is the value MAX_RECLAIM_RETRIES?
Is it also get "out of thin air"?

And would it make sense to have buttons to adjust the timeouts?