linux-kernel - Re: rcu: Throttle rcu_try_advance_all_cbs() execution causes visible slowdown in ftrace switching

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Message-ID: <20140822114302.GG27650@localhost>
Date:	Fri, 22 Aug 2014 19:43:02 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Petr Mládek <pmladek@...e.cz>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Tibor Billes <tbilles@....com>,
	Josh Triplett <josh@...htriplett.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jiri Kosina <jkosina@...e.cz>, linux-kernel@...r.kernel.org,
	Wanlong Gao <gaowanlong@...fujitsu.com>
Subject: Re: rcu: Throttle rcu_try_advance_all_cbs() execution causes visible
 slowdown in ftrace switching

On Fri, Aug 22, 2014 at 10:32:57AM +0200, Petr Mládek wrote:
> On Fri 2014-08-22 11:35:29, Fengguang Wu wrote:
> > Hi Petr,
> > 
> > Sorry for picking up this old thread, but I noticed your attached
> > ftrace test script and would like to ask for your permission to
> > include it in
> > 
> >         https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git
> > 
> > which is GPLv2. If you kindly agree, I'll run it actively for testing
> > the upstream linux kernels.
> 
> Sure. Feel free to use the test script under GPLv2 license.

Great, thank you very much!

Fengguang
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