From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
damon@lists.linux.dev, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: [RFC PATCH 13/13] mm/damon: remove damon_region->nr_accesses_bp
Date: Fri, 19 Jun 2026 12:33:58 -0700 [thread overview]
Message-ID: <20260619193415.73833-14-sj@kernel.org> (raw)
In-Reply-To: <20260619193415.73833-1-sj@kernel.org>
No code touches damon_region->nr_accesses_bp field. Remove it.
Signed-off-by: SeongJae Park <sj@kernel.org>
---
include/linux/damon.h | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/include/linux/damon.h b/include/linux/damon.h
index 16e3e0910526b..cfd653c3e88cd 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -47,8 +47,6 @@ struct damon_size_range {
* @ar: The address range of the region.
* @sampling_addr: Address of the sample for the next access check.
* @nr_accesses: Access frequency of this region.
- * @nr_accesses_bp: @nr_accesses in basis point (0.01%) that updated for
- * each sampling interval.
* @probe_hits: Number of probe-positive region samples.
* @list: List head for siblings.
* @age: Age of this region.
@@ -61,13 +59,6 @@ struct damon_size_range {
* not be done with direct access but with the helper function,
* damon_update_region_access_rate().
*
- * @nr_accesses_bp is another representation of @nr_accesses in basis point
- * (1 in 10,000) that updated for every &damon_attrs->sample_interval in a
- * manner similar to moving sum. By the algorithm, this value becomes
- * @nr_accesses * 10000 for every &struct damon_attrs->aggr_interval. This can
- * be used when the aggregation interval is too huge and therefore cannot wait
- * for it before getting the access monitoring results.
- *
* @age is initially zero, increased for each aggregation interval, and reset
* to zero again if the access frequency is significantly changed. If two
* regions are merged into a new region, both @nr_accesses and @age of the new
@@ -77,7 +68,6 @@ struct damon_region {
struct damon_addr_range ar;
unsigned long sampling_addr;
unsigned int nr_accesses;
- unsigned int nr_accesses_bp;
unsigned char probe_hits[DAMON_MAX_PROBES];
struct list_head list;
--
2.47.3
next prev parent reply other threads:[~2026-06-19 19:34 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-19 19:33 [RFC PATCH 00/13] mm/damon: optimize out nr_accesses_bp SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 01/13] mm/damon: introduce damon_nr_accesses_mvsum() SeongJae Park
2026-06-19 19:44 ` sashiko-bot
2026-06-19 19:52 ` SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 02/13] mm/damon/tests/core-kunit: test damon_mvsum() SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 03/13] mm/damon/core: use damon_nr_accesses_mvsum() in __damos_valid_target() SeongJae Park
2026-06-19 19:49 ` sashiko-bot
2026-06-19 19:33 ` [RFC PATCH 04/13] mm/damon/core: use damon_nr_accesses_mvsum() for damos region tracing SeongJae Park
2026-06-19 19:51 ` sashiko-bot
2026-06-19 20:17 ` SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 05/13] mm/damon/sysfs-schemes: use damon_nr_accesses_mvsum() for damo regions SeongJae Park
2026-06-19 19:47 ` sashiko-bot
2026-06-19 19:55 ` SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 06/13] mm/damon/core: remove damon_warn_fix_nr_accesses_corruption() SeongJae Park
2026-06-19 19:47 ` sashiko-bot
2026-06-19 19:56 ` SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 07/13] mm/damon/core: remove damon_verify_reset_aggregated() SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 08/13] mm/damon/core: remove damon_verify_merge_regions_of() SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 09/13] mm/damon/tests/core-kunit: remove nr_accesses_bp setup and tests SeongJae Park
2026-06-19 19:52 ` sashiko-bot
2026-06-19 20:24 ` SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 10/13] selftests/damon/drgn_dump_damon_status: do not dump nr_accesses_bp SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 11/13] mm/damon/core: remove nr_accesses_bp setups and updates SeongJae Park
2026-06-19 19:33 ` [RFC PATCH 12/13] mm/damon/core: remove damon_moving_sum() and its unit test SeongJae Park
2026-06-19 19:33 ` SeongJae Park [this message]
2026-06-19 19:49 ` [RFC PATCH 13/13] mm/damon: remove damon_region->nr_accesses_bp sashiko-bot
2026-06-19 20:36 ` SeongJae Park
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