From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65538C148 for ; Sat, 24 Feb 2024 01:50:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708739431; cv=none; b=TXCXvOAqHu4RlRbFicXrLVkOjoUgxGnjsXnp10KsfkvQL3mKRAKKahN1pqymT4BJT1k2LW1m06QoWkY4WQcFUww23OVArzxcSW8wMpMC7O/NU+c1SXt9mvI7pDnixWG2iruqaVROowSnQIo2Dr+jFrXBohWj9a7vYEXEHs+oLcQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708739431; c=relaxed/simple; bh=Mz/qbMdHZgX+eHT9dCOJ7GD9KV2RB/yedYaTHV1bYj4=; h=Date:To:From:Subject:Message-Id; b=Yaxt8uzpF3+FIuLPClcbR3sdw8Aj5YQOBMQ6AhF2cn0FyEWf1A3kF/01sGhprOGGp9ikGE/hmd9xuFP7YPnLLaRl5RsK442ql4xv2fvnQ6bCbIVEmHlsrA2g4c1crmFG9yHfrXYKscqr7X7aIR9bm9VSXIIoO4vPjMdGcblGDfY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=YrbJ2buw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="YrbJ2buw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28238C433F1; Sat, 24 Feb 2024 01:50:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1708739430; bh=Mz/qbMdHZgX+eHT9dCOJ7GD9KV2RB/yedYaTHV1bYj4=; h=Date:To:From:Subject:From; b=YrbJ2buwQWizLUCTMPdRcjEm8dIblrQOB5gGi7WKn+BqIZdWGSe1KJ3upMGq8D1Rb ZZ81CmvKrsC685/IUV+yqrZCQ4B2SNUn+tmAv6YKR+WqPP0/ljMbR79ncYskMGCvlp nTJJBw5oISp9Htu1jBUGNfjZ7RufxEW3QWjZFlIw= Date: Fri, 23 Feb 2024 17:50:29 -0800 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters.patch removed from -mm tree Message-Id: <20240224015030.28238C433F1@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: Docs/admin-guide/mm/damon/reclaim: document auto-tuning parameters has been removed from the -mm tree. Its filename was docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: Docs/admin-guide/mm/damon/reclaim: document auto-tuning parameters Date: Mon, 19 Feb 2024 11:44:31 -0800 Update DAMON_RECLAIM usage document for the user/self feedback based auto-tuning of the quota. Link: https://lkml.kernel.org/r/20240219194431.159606-21-sj@kernel.org Signed-off-by: SeongJae Park Signed-off-by: Andrew Morton --- Documentation/admin-guide/mm/damon/reclaim.rst | 27 +++++++++++++++ 1 file changed, 27 insertions(+) --- a/Documentation/admin-guide/mm/damon/reclaim.rst~docs-admin-guide-mm-damon-reclaim-document-auto-tuning-parameters +++ a/Documentation/admin-guide/mm/damon/reclaim.rst @@ -117,6 +117,33 @@ milliseconds. 1 second by default. +quota_mem_pressure_us +--------------------- + +Desired level of memory pressure-stall time in microseconds. + +While keeping the caps that set by other quotas, DAMON_RECLAIM automatically +increases and decreases the effective level of the quota aiming this level of +memory pressure is incurred. System-wide ``some`` memory PSI in microseconds +per quota reset interval (``quota_reset_interval_ms``) is collected and +compared to this value to see if the aim is satisfied. Value zero means +disabling this auto-tuning feature. + +Disabled by default. + +quota_autotune_feedback +----------------------- + +User-specifiable feedback for auto-tuning of the effective quota. + +While keeping the caps that set by other quotas, DAMON_RECLAIM automatically +increases and decreases the effective level of the quota aiming receiving this +feedback of value ``10,000`` from the user. DAMON_RECLAIM assumes the feedback +value and the quota are positively proportional. Value zero means disabling +this auto-tuning feature. + +Disabled by default. + wmarks_interval --------------- _ Patches currently in -mm which might be from sj@kernel.org are