From: David Hildenbrand <david@redhat.com>
To: Johannes Weiner <hannes@cmpxchg.org>, Barry Song <21cnbao@gmail.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Barry Song <v-songbaohua@oppo.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Matthew Wilcox <willy@infradead.org>,
Oscar Salvador <osalvador@suse.de>,
Ryan Roberts <ryan.roberts@arm.com>, Zi Yan <ziy@nvidia.com>
Subject: Re: [RFC PATCH] mm: don't promote exclusive file folios of dying processes
Date: Thu, 17 Apr 2025 14:57:37 +0200 [thread overview]
Message-ID: <3b665ef9-d773-476c-826c-8729056c611c@redhat.com> (raw)
In-Reply-To: <20250417121755.GB780688@cmpxchg.org>
>> We actually took a more aggressive approach by implementing a hook to demote
>> exclusive folios of dying apps, which yielded good results—reducing kswapd
>> overhead, refaults, and thrashing. Of course, it is even much more controversial
>> than this patch.
>
> That doesn't sound wrong to me for Android apps.
>
> How about a prctl() to request the behavior for those specific app
> processes where you have clear usage signal?
I was thinking about the same, so likely that might be a viable solution.
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-04-17 12:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-12 8:58 Barry Song
2025-04-12 15:48 ` Matthew Wilcox
2025-04-12 16:31 ` Zi Yan
2025-04-16 7:48 ` Barry Song
2025-04-16 8:24 ` Baolin Wang
2025-04-16 8:32 ` David Hildenbrand
2025-04-16 9:24 ` Barry Song
2025-04-16 9:32 ` David Hildenbrand
2025-04-16 9:38 ` Barry Song
2025-04-16 9:40 ` David Hildenbrand
2025-04-16 14:15 ` Johannes Weiner
2025-04-16 15:59 ` David Hildenbrand
2025-04-16 18:18 ` Johannes Weiner
2025-04-16 21:54 ` Barry Song
2025-04-16 23:58 ` Johannes Weiner
2025-04-17 2:43 ` Barry Song
2025-04-17 12:17 ` Johannes Weiner
2025-04-17 12:57 ` David Hildenbrand [this message]
2025-04-18 0:16 ` Barry Song
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