Re: [PATCH v2 0/9] Introduce Data Access MONitor (DAMON)

[Qian Cai]

> On Jan 28, 2020, at 5:50 AM, sjpark@xxxxxxxxxx wrote:
> 
> For the comments from perf maintainers, I added Steven Rostedt and Arnaldo
> Carvalho de Melo first, but I might missed someone.  If you recommend some more
> people, I will add them to recipients.
> 
> I made DAMON as a new subsystem because I think no existing subsystem fits well
> to be a base of DAMON, due to DAMON's unique goals and mechanisms described
> below in the original cover letter.
> 
> The existing subsystem that most similar to DAMON might be 'mm/page_idle.c'.
> However, there are many conceptual differences with DAMON.  One biggest
> difference I think is the target.  'page_idle' deals with physical page frames
> while DAMON deals with virtual address of specific processes.
> 
> Nevertheless, if you have some different opinion, please let me know.

I thought everyone should know to go to the MAINTAINERS file and search PERFORMANCE EVENTS SUBSYSTEM.

It might be difficult but there is a perf subcommand for some subsystems like sched: tracing/measuring of scheduler actions and latencies.