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Message-ID: <DM6PR11MB397833DB2DF869EB50D5E92F9CAD9@DM6PR11MB3978.namprd11.prod.outlook.com>
Date: Wed, 1 Mar 2023 00:24:54 +0000
From: "Pulavarty, Badari" <badari.pulavarty@...el.com>
To: SeongJae Park <sj@...nel.org>,
"lsf-pc@...ts.linux-foundation.org"
<lsf-pc@...ts.linux-foundation.org>
CC: "damon@...ts.linux.dev" <damon@...ts.linux.dev>,
"linux-mm@...ck.org" <linux-mm@...ck.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [LSF/MM/BPF TOPIC] DAMON Updates and Future Plans
Hi SJ,
We discussed this earlier.
- Are there plans to make DAMON monitor/manage cgroup instead of individual pids?
Thanks,
Badari
-----Original Message-----
From: SeongJae Park <sj@...nel.org>
Sent: Monday, February 13, 2023 4:33 PM
To: lsf-pc@...ts.linux-foundation.org
Cc: SeongJae Park <sj@...nel.org>; damon@...ts.linux.dev; linux-mm@...ck.org; linux-kernel@...r.kernel.org
Subject: [LSF/MM/BPF TOPIC] DAMON Updates and Future Plans
Hi all,
DAMON has merged into mainline as a data access monitoring tool that equips a best-effort overhead-accuracy tradeoff mechanism, and then extended for data access-aware system operations. I'd like to briefly introduce current state of DAMON and share/discuss about 2023 plans including below.
- Finer and easier-to-use DAMOS tuning
- tuning aggressiveness based on user or kernel feed (e.g., QPS or PSI)
- Merging DAMON user space tool into the mainline
- Extending DAMON
- Page-granularity monitoring
- LRU-lists based page-granulariy monitoring
- CPU-specific access monitoring
- Read/Write-only access monitoring
- More DAMON-based Operation Schemes
- Tiered memory management
- THP memory footprint reduction
- NUMA balancing
I hope to hear concerns/interests about the plans for prioritizing each work items and get some suggestions of future works and collaboration with other kernel subsystems/hackers.
Thanks,
SJ
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