linux-kernel - Re: [REPOST PATCH] ftrace: Remove the unused variant ftrace_update

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Message-ID: <20150915115057.2b9bea60@gandalf.local.home>
Date:	Tue, 15 Sep 2015 11:50:57 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Minfei Huang <mnfhuang@...il.com>
Cc:	Minfei Huang <mhuang@...hat.com>, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [REPOST PATCH] ftrace: Remove the unused variant
 ftrace_update_time

On Tue, 15 Sep 2015 23:37:39 +0800
Minfei Huang <mnfhuang@...il.com> wrote:

 
> I think the variant ftrace_update_time is not used any more. Previously,
> it is used to print the time how long ftrace will spend to update the
> code in fucntion ftraced. 

Yes, I know what it measures. It's been on my todo list to export that
out to userspace, as it is an interesting metric.

> 
> > 
> > Maybe add it to the dyn_ftrace_total_info file?
> > 
> 
> This file only uses the variant ftrace_update_tot_cnt which is stored
> the updated function number.

But we can add to that file with a space delimited output.

-- Steve

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