From: SeongJae Park <sjpark@xxxxxxxxx> NOTE: This is only an RFC for future features of DAMON patchset[1], which is not merged in the mainline yet. The aim of this RFC is to show how DAMON would be evolved once it is merged in. So, if you have some interest in this RFC, please consider reviewing the DAMON patchset, either. After posting DAMON patchset[1], we received a number of comments. Based on those, we listed and shared future works for DAMON in the kernel summit 2020[2] and had a poll for the priorities of the works. As a result, the user space interface improvement received a second highest priority[3]. For the reason, this patchset is came out. The 1st patch puts more information in the monitoring thread name so that user space could charge the DAMON's CPU usage on them by themselves, in fine granularity. The 2nd patch makes multiple monitoring contexts available using the debugfs interface. [1] https://lore.kernel.org/linux-mm/20200817105137.19296-1-sjpark@xxxxxxxxxx/ [2] https://linuxplumbersconf.org/event/7/contributions/659/ [3] https://lore.kernel.org/linux-mm/20200831112235.2675-1-sjpark@xxxxxxxxxx/ Baseline and Complete Git Trees =============================== The patches are based on the v5.8 plus DAMON v20 patchset[1], RFC v14 of DAMOS patchset, RFC v8 of physical address space support patchset, and some more trivial fixes (s/snprintf/scnprintf). You can also clone the complete git tree: $ git clone git://github.com/sjp38/linux -b damon-usi/rfc/v1 The web is also available: https://github.com/sjp38/linux/releases/tag/damon-usi/rfc/v1 [1] https://lore.kernel.org/linux-mm/20200817105137.19296-1-sjpark@xxxxxxxxxx/ [2] https://lore.kernel.org/linux-mm/20200804142430.15384-1-sjpark@xxxxxxxxxx/ [3] https://lore.kernel.org/linux-mm/20200831104730.28970-1-sjpark@xxxxxxxxxx/ SeongJae Park (2): mm/damon: Put more information in kdamond thread name mm/damon/debugfs: Support multiple contexts include/linux/damon.h | 2 + mm/damon-test.h | 34 ++-- mm/damon.c | 361 +++++++++++++++++++++++++++++++++--------- 3 files changed, 308 insertions(+), 89 deletions(-) -- 2.17.1
