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From: Andrew Morton <akpm@linux-foundation.org>
To: SeongJae Park <sj@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	damon@lists.linux.dev, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org
Subject: Re: [PATCH 12/12] mm/damon/core: add trace point for damos stat per apply interval
Date: Wed, 17 Dec 2025 18:29:15 -0800	[thread overview]
Message-ID: <20251217182915.5284d66b58ac7b744b8dcf7f@linux-foundation.org> (raw)
In-Reply-To: <20251217235219.2750-1-sj@kernel.org>

On Wed, 17 Dec 2025 15:52:18 -0800 SeongJae Park <sj@kernel.org> wrote:

> On Wed, 17 Dec 2025 17:48:51 -0500 Steven Rostedt <rostedt@goodmis.org> wrote:
> 
> > On Tue, 16 Dec 2025 00:01:25 -0800
> > SeongJae Park <sj@kernel.org> wrote:
> > 
> > > +	TP_printk("ctx_idx=%u scheme_idx=%u nr_tried=%lu sz_tried=%lu "
> > > +			"nr_applied=%lu sz_tried=%lu sz_ops_filter_passed=%lu "
> > > +			"qt_exceeds=%lu nr_snapshots=%lu",
> > 
> > Nit, but it's been stated that strings should not be broken up because of
> > the column limit.

screw the rules

> --- a/include/trace/events/damon.h
> +++ b/include/trace/events/damon.h
> @@ -40,9 +40,7 @@ TRACE_EVENT(damos_stat_after_apply_interval,
>  		__entry->nr_snapshots = stat->nr_snapshots;
>  	),
>  
> -	TP_printk("ctx_idx=%u scheme_idx=%u nr_tried=%lu sz_tried=%lu "
> -			"nr_applied=%lu sz_tried=%lu sz_ops_filter_passed=%lu "
> -			"qt_exceeds=%lu nr_snapshots=%lu",
> +	TP_printk("ctx_idx=%u scheme_idx=%u nr_tried=%lu sz_tried=%lu nr_applied=%lu sz_tried=%lu sz_ops_filter_passed=%lu qt_exceeds=%lu nr_snapshots=%lu",
>  			__entry->context_idx, __entry->scheme_idx,
>  			__entry->nr_tried, __entry->sz_tried,
>  			__entry->nr_applied, __entry->sz_applied,

because that's just crazy.  Let's use some judgment here!


  reply	other threads:[~2025-12-18  2:29 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-16  8:01 [PATCH 00/12] mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos stats SeongJae Park
2025-12-16  8:01 ` [PATCH 01/12] mm/damon/core: introduce nr_snapshots damos stat SeongJae Park
2025-12-16  8:01 ` [PATCH 02/12] mm/damon/sysfs-schemes: introduce nr_snapshots damos stat file SeongJae Park
2025-12-16  8:01 ` [PATCH 03/12] Docs/mm/damon/design: update for nr_snapshots damos stat SeongJae Park
2025-12-16  8:01 ` [PATCH 04/12] Docs/admin-guide/mm/damon/usage: " SeongJae Park
2025-12-16  8:01 ` [PATCH 05/12] Docs/ABI/damon: " SeongJae Park
2025-12-16  8:01 ` [PATCH 06/12] mm/damon: update damos kerneldoc for stat field SeongJae Park
2025-12-16  8:01 ` [PATCH 07/12] mm/damon/core: implement max_nr_snapshots SeongJae Park
2025-12-16  8:01 ` [PATCH 08/12] mm/damon/sysfs-schemes: implement max_nr_snapshots file SeongJae Park
2025-12-16  8:01 ` [PATCH 09/12] Docs/mm/damon/design: update for max_nr_snapshots SeongJae Park
2025-12-16  8:01 ` [PATCH 10/12] Docs/admin-guide/mm/damon/usage: " SeongJae Park
2025-12-16  8:01 ` [PATCH 11/12] Docs/ABI/damon: " SeongJae Park
2025-12-16  8:01 ` [PATCH 12/12] mm/damon/core: add trace point for damos stat per apply interval SeongJae Park
2025-12-17 22:48   ` Steven Rostedt
2025-12-17 23:52     ` SeongJae Park
2025-12-18  2:29       ` Andrew Morton [this message]
2025-12-18  3:04         ` SeongJae Park
2025-12-18 17:29         ` Steven Rostedt

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