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| author |   SeongJae Park <sj@kernel.org> | 2025-03-03 14:17:25 -0800 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 00:05:33 -0700 |
| commit | e2b23dc62369b76b68d8354f12baeaff14b6e24f (patch) | |
| tree | c0532e10729d8d4d3e9bebaed5b5df4cc1d53d5e | |
| parent | Docs/mm/damon/design: document for intervals auto-tuning (diff) | |
| download | wireguard-linux-e2b23dc62369b76b68d8354f12baeaff14b6e24f.tar.xz wireguard-linux-e2b23dc62369b76b68d8354f12baeaff14b6e24f.zip | |
Docs/ABI/damon: document intervals auto-tuning ABI
Document the DAMON user-space ABI for DAMON sampling and aggregation
intervals auto-tuning.
Link: https://lkml.kernel.org/r/20250303221726.484227-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-kernel-mm-damon | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon index ccd13ca668c8..76da77d7f7b6 100644 --- a/Documentation/ABI/testing/sysfs-kernel-mm-damon +++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon @@ -91,6 +91,36 @@ Description: Writing a value to this file sets the update interval of the DAMON context in microseconds as the value. Reading this file returns the value. +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/access_bp +Date: Feb 2025 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the monitoring intervals + auto-tuning target DAMON-observed access events ratio within + the given time interval (aggrs in same directory), in bp + (1/10,000). Reading this file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/aggrs +Date: Feb 2025 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the time interval to achieve + the monitoring intervals auto-tuning target DAMON-observed + access events ratio (access_bp in same directory) within. + Reading this file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/min_sample_us +Date: Feb 2025 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the minimum value of + auto-tuned sampling interval in microseconds. Reading this + file returns the value. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/intrvals_goal/max_sample_us +Date: Feb 2025 +Contact: SeongJae Park <sj@kernel.org> +Description: Writing a value to this file sets the maximum value of + auto-tuned sampling interval in microseconds. Reading this + file returns the value. + What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/min WDate: Mar 2022 |