From: Arjan van de Ven <arjan@infradead.org>
To: Michael Breuer <mbreuer@majjas.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Thomas Gleixner <tglx@linutronix.de>, Len Brown <lenb@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: Problem? intel_iommu=off; perf top shows acpi_os_read_port as extremely busy
Date: Sun, 29 Nov 2009 12:47:31 -0800 [thread overview]
Message-ID: <20091129124731.7d0c9b45@infradead.org> (raw)
In-Reply-To: <4B11678D.8020601@majjas.com>
On Sat, 28 Nov 2009 13:10:21 -0500
Michael Breuer <mbreuer@majjas.com> wrote:
> Ok - my only question then is why things appear so different with
> intel_iommu enabled.
something else is even more expensive then :0
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2009-11-29 20:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-28 0:20 Michael Breuer
2009-11-28 7:18 ` Ingo Molnar
2009-11-28 15:27 ` Peter Zijlstra
2009-11-28 15:47 ` Michael Breuer
2009-11-28 17:45 ` Arjan van de Ven
2009-11-28 18:10 ` Michael Breuer
2009-11-29 20:47 ` Arjan van de Ven [this message]
2009-11-30 5:11 ` Michael Breuer
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