From: Nhat Pham <nphamcs@gmail.com>
To: Yosry Ahmed <yosry@kernel.org>
Cc: Hao Jia <jiahao.kernel@gmail.com>,
akpm@linux-foundation.org, tj@kernel.org, hannes@cmpxchg.org,
shakeel.butt@linux.dev, mhocko@kernel.org, mkoutny@suse.com,
chengming.zhou@linux.dev, muchun.song@linux.dev,
roman.gushchin@linux.dev, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
Hao Jia <jiahao1@lixiang.com>
Subject: Re: [PATCH 2/2] mm/zswap: Support batch writeback in shrink_memcg()
Date: Fri, 17 Jul 2026 09:50:33 -0700 [thread overview]
Message-ID: <CAKEwX=Patm4+gxtxwDYBFXFh+jfaOUSvtKtVZFvp=oQwNmdu1Q@mail.gmail.com> (raw)
In-Reply-To: <CAO9r8zMLGMpsQ+HbLA5SFSMEc_ctuZoScJMkybnXMp+_0MW-yQ@mail.gmail.com>
On Thu, Jul 16, 2026 at 1:35 PM Yosry Ahmed <yosry@kernel.org> wrote:
>
>
> It is a bit alarming that the store rejection rate is still 43% with
> batching, but we can worry about this later :)
Yeah I think it's unavoidable at the time the global shrinker is
awaken, unfortunately :( We need to kick off shrinking way ahead of
time if we want to avoid this, especially since the rate of zswap out
is going to be faster than the rate of writeback (CPU vs IO).
Sort of why we implement the proactive reclaimers :)
next prev parent reply other threads:[~2026-07-17 16:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-14 8:15 [PATCH 0/2] mm/zswap: Fixes and improves the zswap global shrinker Hao Jia
2026-07-14 8:15 ` [PATCH 1/2] mm/zswap: Fix global shrinker when memory cgroup is disabled Hao Jia
2026-07-14 16:52 ` Yosry Ahmed
2026-07-15 2:31 ` Andrew Morton
2026-07-15 12:30 ` Hao Jia
2026-07-15 16:13 ` Yosry Ahmed
2026-07-16 2:21 ` Hao Jia
2026-07-16 18:18 ` Nhat Pham
2026-07-17 0:08 ` Yosry Ahmed
2026-07-17 8:46 ` Hao Jia
2026-07-14 8:15 ` [PATCH 2/2] mm/zswap: Support batch writeback in shrink_memcg() Hao Jia
2026-07-14 16:52 ` Yosry Ahmed
2026-07-15 11:28 ` Hao Jia
2026-07-15 16:14 ` Yosry Ahmed
2026-07-16 2:54 ` Hao Jia
2026-07-16 18:04 ` Nhat Pham
2026-07-17 8:29 ` Hao Jia
2026-07-16 20:35 ` Yosry Ahmed
2026-07-17 16:50 ` Nhat Pham [this message]
2026-07-17 16:55 ` Yosry Ahmed
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