linux-kernel - Re: [PATCH] tracing: sched: Hide numa events under CONFIG_NUMA

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Message-ID: <20250725090024.64157cd6@gandalf.local.home>
Date: Fri, 25 Jul 2025 09:00:24 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Shrikanth Hegde <sshegde@...ux.ibm.com>
Cc: Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Peter Zijlstra <peterz@...radead.org>,
 LKML <linux-kernel@...r.kernel.org>, Linux trace kernel
 <linux-trace-kernel@...r.kernel.org>
Subject: Re: [PATCH] tracing: sched: Hide numa events under
 CONFIG_NUMA_BALANCING

On Wed, 23 Jul 2025 15:14:26 +0530
Shrikanth Hegde <sshegde@...ux.ibm.com> wrote:

> On 6/12/25 19:35, Steven Rostedt wrote:
> > From: Steven Rostedt <rostedt@...dmis.org>
> > 
> > The events sched_move_numa, sched_stick_numa and sched_swap_numa are only
> > called when CONFIG_NUMA_BALANCING is configured. As each event can take up
> > to 5K of memory in text and meta data regardless if they are used or not,
> > they should not be defined when used.  
> 
> they should be defined when used?

That was supposed to be: "they should not be defined when unused."

Thanks for pointing it out.

> 
> Reviewed-by: Shrikanth Hegde <sshegde@...ux.ibm.com>

Thanks!

-- Steve