linux-kernel - Re: [PATCH v2 0/3] Add tracepoints for lowmem reserves, watermarks and totalreserve

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Message-ID: <CAASV4h4_xgJPZOvh8k5snJc_ocvwPih+SvK9D8+_Fid2chcz6Q@mail.gmail.com>
Date: Wed, 12 Mar 2025 23:50:34 +0800
From: Martin Liu <liumartin@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
	linux-mm@...ck.org, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Masami Hiramatsu <mhiramat@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, minchan@...nel.org, 
	Suren Baghdasaryan <surenb@...gle.com>
Subject: Re: [PATCH v2 0/3] Add tracepoints for lowmem reserves, watermarks
 and totalreserve_pages

Hi Andrew,

I hope you've had a chance to review this patchset. I was wondering if you
had any concerns about merging it, or if there's anything I need to address.

Thanks,
Martin

On Sat, Mar 8, 2025 at 11:46 AM Martin Liu <liumartin@...gle.com> wrote:
>
> This patchset introduces tracepoints to track changes in the lowmem
> reserves, watermarks and totalreserve_pages. This helps to track
> the exact timing of such changes and understand their relation to
> reclaim activities.
>
> The tracepoints added are:
>
> mm_setup_per_zone_lowmem_reserve
> mm_setup_per_zone_wmarks
> mm_calculate_totalreserve_pagesi
>
> Changes in V2:
>   Fix coding format error. Feedback from kaleshsingh@...gle.com.
>
> Martin Liu (3):
>   mm/page_alloc: Add trace event for per-zone watermark setup
>   mm/page_alloc: Add trace event for per-zone lowmem reserve setup
>   mm/page_alloc: Add trace event for totalreserve_pages calculation
>
>  include/trace/events/kmem.h | 78 +++++++++++++++++++++++++++++++++++++
>  mm/page_alloc.c             |  4 ++
>  2 files changed, 82 insertions(+)
>
> --
> 2.49.0.rc0.332.g42c0ae87b1-goog
>