linux-kernel - Re: [linux-sunxi] [PATCH 0/8] clocksource: sunxi: Timer fixes and cleanup

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Message-ID: <51CC0566.8010302@redhat.com>
Date:	Thu, 27 Jun 2013 11:27:02 +0200
From:	Hans de Goede <hdegoede@...hat.com>
To:	linux-sunxi@...glegroups.com
CC:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Emilio Lopez <emilio@...pez.com.ar>, kevin@...winnertech.com,
	sunny@...winnertech.com, shuge@...winnertech.com
Subject: Re: [linux-sunxi] [PATCH 0/8] clocksource: sunxi: Timer fixes and
 cleanup

Hi,

On 06/26/2013 11:16 PM, Maxime Ripard wrote:
> Hi everyone,
>

<snip>

> It also finally adds a clocksource from the free running counter found in the
> A10/A13 SoCs.

Hmm, have you benchmarked this? There have been reports from linux-sunxi kernel
users (xbmc project) that the waiting for the latch is quite slow. Note we
don't have anything better yet in the linux-sunxi kernel.

Regards,

Hans
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