From: Rik van Riel <riel@surriel.com>
To: Chris Li <chrisl@kernel.org>
Cc: "Johannes Weiner" <hannes@cmpxchg.org>,
"Kairui Song" <ryncsn@gmail.com>, "Nhat Pham" <nphamcs@gmail.com>,
"Michal Hocko" <mhocko@kernel.org>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Shakeel Butt" <shakeel.butt@linux.dev>,
"Yosry Ahmed" <yosry@kernel.org>,
"David Hildenbrand" <david@kernel.org>,
"Muchun Song" <muchun.song@linux.dev>,
"Kemeng Shi" <shikemeng@huaweicloud.com>,
"Baoquan He" <baoquan.he@linux.dev>,
"Barry Song" <baohua@kernel.org>,
"YoungJun Park" <youngjun.park@lge.com>,
"Chengming Zhou" <chengming.zhou@linux.dev>,
"Lorenzo Stoakes (Oracle)" <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
"Vlastimil Babka (SUSE)" <vbabka@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
"Qi Zheng" <qi.zheng@linux.dev>,
"Axel Rasmussen" <axelrasmussen@google.com>,
"Yuanchu Xie" <yuanchu@google.com>, "Wei Xu" <weixugc@google.com>,
"Gregory Price" <gourry@gourry.net>,
"Wenchao Hao" <haowenchao22@gmail.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Hugh Dickins" <hughd@google.com>,
"Baolin Wang" <baolin.wang@linux.alibaba.com>,
"Tejun Heo" <tj@kernel.org>, "Michal Koutný" <mkoutny@suse.com>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Kunwu Chan" <kunwu.chan@linux.dev>,
"Meta kernel team" <kernel-team@meta.com>,
"Linux Memory Management List" <linux-mm@kvack.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
linux-doc@vger.kernel.org,
"open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)"
<cgroups@vger.kernel.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Joshua Hahn" <joshua.hahnjy@gmail.com>
Subject: Re: Path forward for Virtualized Swap?
Date: Sun, 20 Sep 2026 20:35:55 -0400 [thread overview]
Message-ID: <da13e0e48568da3ccccc304aeb449ababf085e14.camel@surriel.com> (raw)
In-Reply-To: <CACePvbXDDDHo0rwkR3Ln4==teQugYP2=5y87J+A48Lagk1X_zg@mail.gmail.com>
On Sun, 2026-09-20 at 14:18 -1000, Chris Li wrote:
> On Sat, Sep 19, 2026 at 3:07 PM Rik van Riel <riel@surriel.com>
> wrote:
> >
> > >
> > > For our deployment, we only compress about 7-10% of the system
> > > memory
> > > before performance starts to suffer. The feedback loop will scale
> > > it
> > > back. I am very curious do you have actual work load to swap out
> > > 100%
> > > of the RAM.
> >
> > One common workload is a web browser with idle tabs.
> >
> > Those often compress pretty well, a ratio of 4:1 is
> > not unheard of, which makes it easy to fill up
> > 1/3 of memory with 133% of memory's worth of compressed
> > memory.
>
> You did not answer my question. You are talking about user-space
> processes (browsers). Do you run your browser in the data center, or
> is that a laptop workload?
The browser runs on the desktop, but the same
kernel runs on both.
The things we build here cannot be optimized for
just one single workload. They have to work
everywhere.
--
All Rights Reversed.
next prev parent reply other threads:[~2026-09-21 0:37 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 21:14 Nhat Pham
2026-09-07 5:51 ` Kairui Song
2026-09-08 16:36 ` Nhat Pham
2026-09-11 16:09 ` Kairui Song
2026-09-11 16:57 ` Nhat Pham
2026-09-11 18:14 ` Kairui Song
2026-09-11 19:03 ` Nhat Pham
2026-09-12 8:47 ` Kairui Song
2026-09-14 16:49 ` Nhat Pham
2026-09-08 18:30 ` Johannes Weiner
2026-09-09 16:41 ` Nhat Pham
2026-09-09 17:47 ` Nhat Pham
2026-09-12 9:00 ` Kairui Song
2026-09-12 11:51 ` Johannes Weiner
2026-09-19 7:23 ` Chris Li
2026-09-20 1:06 ` Rik van Riel
2026-09-21 0:18 ` Chris Li
2026-09-21 0:35 ` Rik van Riel [this message]
2026-09-21 0:53 ` Chris Li
2026-09-14 16:10 ` Nhat Pham
2026-09-10 23:27 ` Nhat Pham
2026-09-07 11:30 ` David Hildenbrand (Arm)
2026-09-08 16:45 ` Nhat Pham
2026-09-10 10:56 ` David Hildenbrand (Arm)
2026-09-10 16:22 ` Nhat Pham
2026-09-10 17:57 ` David Hildenbrand (Arm)
2026-09-11 16:20 ` Kairui Song
2026-09-11 16:56 ` David Hildenbrand (Arm)
2026-09-14 15:00 ` Baoquan He
2026-09-19 6:50 ` Chris Li
2026-09-10 7:09 ` Baoquan He
2026-09-10 16:39 ` Shakeel Butt
2026-09-11 13:06 ` Baoquan He
2026-09-11 16:45 ` Shakeel Butt
2026-09-15 5:48 ` Baoquan He
2026-09-15 6:44 ` Baoquan He
2026-09-19 6:55 ` Chris Li
2026-09-19 16:15 ` Rik van Riel
2026-09-19 21:21 ` Chris Li
2026-09-19 22:50 ` Rik van Riel
2026-09-21 0:13 ` Chris Li
2026-09-19 7:07 ` Chris Li
2026-09-10 17:03 ` Johannes Weiner
2026-09-11 12:27 ` Baoquan He
2026-09-11 16:21 ` Johannes Weiner
2026-09-19 8:45 ` Chris Li
2026-09-19 16:08 ` Gregory Price
2026-09-19 19:02 ` Chris Li
2026-09-20 1:14 ` Rik van Riel
2026-09-20 1:53 ` Gregory Price
2026-09-10 17:16 ` Nhat Pham
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