linux-kernel - Re: [PATCH, RFC] RCU: New scalable, multi-GP and preemptible RCU implementation

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Date:	Wed, 15 Sep 2010 23:36:16 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Andrew Morton <akpm@...l.org>,
	David Miller <davem@...emloft.net>,
	Manfred Spraul <manfred@...orfullife.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>, dipankar@...ibm.com
Subject: Re: [PATCH, RFC] RCU: New scalable, multi-GP and preemptible RCU
 implementation

On Wed, Sep 15, 2010 at 05:43:12PM +0800, Lai Jiangshan wrote:
> On 09/14/2010 07:17 AM, Paul E. McKenney wrote:
> >>>>
> >>>> Only in x86(32bit and 64bit) system.
> >>>> Did you patch it in power and test it? It' need more test for different archs,
> >>>> but I have no other arch.
> >>>>
> >>>> What is "hardware configuration"?
> >>>
> >>> Mainly the number of CPUs.  The socket/core/thread counts could also
> >>> be helpful.
> > 
> > Any info?  ;-)
> > 
> 
> Ouch, answer this first:
> hardware1: x86,     1cpu X 2cores
> hardware2: x86_64,  2cpu X 2cores
> 48 hours rcutorture for each machine, (NO_HZ, cpu_plugin concurrently ... )
> ~120 minutes rcutorture for each different CONFIG.
> 
> this work is my own work, not my company's, I can't access to
> big machines.

Thank you for the info!

I will do some testing some time in the next few weeks.  Initial smoke
tests look promising.

							Thanx, Paul
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