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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150915121226.2121424f@gandalf.local.home>
Date:	Tue, 15 Sep 2015 12:12:26 -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 Wed, 16 Sep 2015 00:00:46 +0800
Minfei Huang <mnfhuang@...il.com> wrote:

> On 09/15/15 at 11:50am, Steven Rostedt wrote:
> > 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.
> > 
> 
> Export the time which ftrace spent to update the all of the function?
> How about exporting the time ftrace spent in latest time?
> 

I think you misunderstood me. I want to export what it is now. The time
it took to run ftrace_update_code() the last time it ran. Not a total
amount of time that it ran for.

-- Steve
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/