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Message-ID: <CAOUHufbuqGJJ1pUJuYW8h6uB5+KpNSJotEd_WSzF5AK-S_6PoA@mail.gmail.com>
Date: Wed, 22 Jun 2022 00:21:47 -0600
From: Yu Zhao <yuzhao@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Andi Kleen <ak@...ux.intel.com>,
Aneesh Kumar <aneesh.kumar@...ux.ibm.com>,
Catalin Marinas <catalin.marinas@....com>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Hillf Danton <hdanton@...a.com>, Jens Axboe <axboe@...nel.dk>,
Johannes Weiner <hannes@...xchg.org>,
Jonathan Corbet <corbet@....net>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Matthew Wilcox <willy@...radead.org>,
Mel Gorman <mgorman@...e.de>,
Michael Larabel <Michael@...haellarabel.com>,
Michal Hocko <mhocko@...nel.org>,
Mike Rapoport <rppt@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Tejun Heo <tj@...nel.org>, Vlastimil Babka <vbabka@...e.cz>,
Will Deacon <will@...nel.org>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>,
"open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
Linux-MM <linux-mm@...ck.org>,
"the arch/x86 maintainers" <x86@...nel.org>,
Kernel Page Reclaim v2 <page-reclaim@...gle.com>
Subject: Re: [PATCH v12 00/14] Multi-Gen LRU Framework
On Tue, Jun 14, 2022 at 1:17 AM Yu Zhao <yuzhao@...gle.com> wrote:
>
> What's new
> ==========
> 1. Fixed a bug (using pmd_addr_end() when __PAGETABLE_PMD_FOLDED)
> reported by:
> Thomas Graichen <thomas.graichen@...glemail.com>
> https://forum.armbian.com/topic/20018-mglru-patches-to-bring-down-kswapd-cpu-usage/
> 2. Retested on v5.19-rc1 and rebased to v5.19-rc2.
> 3. Nits.
>
> TLDR
> ====
> The current page reclaim is too expensive in terms of CPU usage and it
> often makes poor choices about what to evict. This patchset offers an
> alternative solution that is performant, versatile and
> straightforward.
I don't see any action items left for me. Are we good for the next merge window?
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