All of lore.kernel.org
 help / color / mirror / Atom feed
From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
	damon@lists.linux.dev, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/9] mm/damon/sysfs-schemes: use nr_accesses_bp as the source of tried_regions/<N>/nr_accesses
Date: Sat, 16 Sep 2023 02:09:38 +0000	[thread overview]
Message-ID: <20230916020945.47296-3-sj@kernel.org> (raw)
In-Reply-To: <20230916020945.47296-1-sj@kernel.org>

DAMON sysfs interface exposes access rate of each region via DAMOS tried
regions directory.  For this, the nr_accesses field of the region is
used.  DAMOS was actually using nr_accesses in the past, but it uses
nr_accesses_bp now.  Use the value that it is really using as the
source.

Note that this doesn't expose nr_accesses_bp as is (in basis point), but
after converting it to the natural number by dividing the value by
10,000.  Hence there is no behavioral change from users' perspective.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/sysfs-schemes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 527e7d17eb3b..093700f50b18 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -31,7 +31,7 @@ static struct damon_sysfs_scheme_region *damon_sysfs_scheme_region_alloc(
 		return NULL;
 	sysfs_region->kobj = (struct kobject){};
 	sysfs_region->ar = region->ar;
-	sysfs_region->nr_accesses = region->nr_accesses;
+	sysfs_region->nr_accesses = region->nr_accesses_bp / 10000;
 	sysfs_region->age = region->age;
 	INIT_LIST_HEAD(&sysfs_region->list);
 	return sysfs_region;
-- 
2.25.1


  parent reply	other threads:[~2023-09-16  2:09 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-16  2:09 [PATCH 0/9] mm/damon: implement DAMOS apply intervals SeongJae Park
2023-09-16  2:09 ` [PATCH 1/9] mm/damon/core: make DAMOS uses nr_accesses_bp instead of nr_accesses SeongJae Park
2023-09-16  2:09 ` SeongJae Park [this message]
2023-09-16  2:09 ` [PATCH 3/9] mm/damon/core: use nr_accesses_bp as a source of damos_before_apply tracepoint SeongJae Park
2023-09-16  2:09 ` [PATCH 4/9] mm/damon/core: implement scheme-specific apply interval SeongJae Park
2023-09-16  2:09 ` [PATCH 5/9] Docs/mm/damon/design: document DAMOS apply intervals SeongJae Park
2023-09-16  2:09 ` [PATCH 6/9] mm/damon/sysfs-schemes: support DAMOS apply interval SeongJae Park
2023-09-16  2:09 ` [PATCH 7/9] selftests/damon/sysfs: test DAMOS apply intervals SeongJae Park
2023-09-16  2:09 ` [PATCH 8/9] Docs/admin-guide/mm/damon/usage: update for " SeongJae Park
2023-09-16  2:09 ` [PATCH 9/9] Docs/ABI/damon: " SeongJae Park

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=20230916020945.47296-3-sj@kernel.org \
    --to=sj@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=damon@lists.linux.dev \
    --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.