Re: [REPOST PATCH] ftrace: Remove the unused variant ftrace_update_time

From: Minfei Huang
Date: Tue Sep 15 2015 - 11:37:52 EST


On 09/15/15 at 09:35am, Steven Rostedt wrote:
> On Tue, 15 Sep 2015 15:10:43 +0800
> Minfei Huang <mhuang@xxxxxxxxxx> wrote:
>
> > From: Minfei Huang <mnfhuang@xxxxxxxxx>
> >
> > Since the patch "ftrace: remove daemon(cb7be3b)" remove the function
> > ftraced, the variant ftrace_update_time never be used any more.
> >
> > Remove the unused variant ftrace_update_time.
>
> Actually, the patch I would like to see is this variable being used.
> I'd like to know this statistic.

Hi, Steven.

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.

>
> 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.

Thanks
Minfei
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