From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
damon@lists.linux.dev, kernel-team@meta.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 2/2] mm/damon/Kconfig: enable CONFIG_DAMON by default
Date: Tue, 20 May 2025 21:27:55 -0700 [thread overview]
Message-ID: <20250521042755.39653-3-sj@kernel.org> (raw)
In-Reply-To: <20250521042755.39653-1-sj@kernel.org>
As of this writing, multiple major distros including Alma, Amazon,
Android, CentOS, Debian, Fedora, and Oracle are build-enabling DAMON
(set CONFIG_DAMON[1]). Enabling it by default will save configuration
setup time for the current and future DAMON users.
Build-enabling DAMON does not introduce a real risk since it makes no
behavioral change by default. It requires explicit user requests to do
anything. Only one potential risk is making the size of the kernel a
little bit larger. On a production-purpose configuration, it increases
the resulting kernel package size by about 0.1 % of the final package
file. I believe that's too small to be a real problem in common setups.
Hence, the benefit of enabling CONFIG_DAMON outweighs the potential
risk. Set CONFIG_DAMON by default.
[1] https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DAMON
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index c93d0c56b963..551745df011b 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -4,6 +4,7 @@ menu "Data Access Monitoring"
config DAMON
bool "DAMON: Data Access Monitoring Framework"
+ default y
help
This builds a framework that allows kernel subsystems to monitor
access frequency of each memory region. The information can be useful
--
2.39.5
next prev parent reply other threads:[~2025-05-21 4:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-21 4:27 [PATCH 0/2] mm/damon: build-enable essential DAMON components by default SeongJae Park
2025-05-21 4:27 ` [PATCH 1/2] mm/damon/Kconfig: set DAMON_{VADDR,PADDR,SYSFS} default to DAMON SeongJae Park
2025-05-22 5:54 ` Honggyu Kim
2025-05-22 17:10 ` SeongJae Park
2025-05-21 4:27 ` SeongJae Park [this message]
2025-05-22 5:55 ` [PATCH 2/2] mm/damon/Kconfig: enable CONFIG_DAMON by default Honggyu Kim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250521042755.39653-3-sj@kernel.org \
--to=sj@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=damon@lists.linux.dev \
--cc=kernel-team@meta.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.