linux-kernel - Re: [PATCH 03/33] cputime: Generic on-demand virtual cputime accounting

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Message-ID: <1357739406.5190.54.camel@gandalf.local.home>
Date:	Wed, 09 Jan 2013 08:50:06 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Alessio Igor Bogani <abogani@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Chris Metcalf <cmetcalf@...era.com>,
	Christoph Lameter <cl@...ux.com>,
	Geoff Levand <geoff@...radead.org>,
	Gilad Ben Yossef <gilad@...yossef.com>,
	Hakan Akkan <hakanakkan@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Li Zhong <zhong@...ux.vnet.ibm.com>,
	Namhyung Kim <namhyung.kim@....com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 03/33] cputime: Generic on-demand virtual cputime
 accounting

On Wed, 2013-01-09 at 08:46 -0500, Steven Rostedt wrote:
>   
> > +config VIRT_CPU_ACCOUNTING_GEN
> > +	bool "Full dynticks CPU time accounting"
> > +	depends on HAVE_CONTEXT_TRACKING
> > +	select VIRT_CPU_ACCOUNTING
> > +	select CONTEXT_TRACKING
> 
> 	select CONTEXT_TRACKING_FORCE
> 
> Otherwise the user time never gets updated.
> 

Bah, kernel time is now screwed up with this:


# time /work/c/kernelspin 5

real    0m5.001s
user    0m1.785s
sys     0m0.000s


-- Steve


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