From: bigeasy@linutronix.de (Sebastian Andrzej Siewior)
To: linux-arm-kernel@lists.infradead.org
Subject: mx27 running too slow
Date: Tue, 08 Apr 2014 18:27:02 +0200 [thread overview]
Message-ID: <53442356.5040604@linutronix.de> (raw)
In-Reply-To: <CAOMZO5Ax9zymvSdts0=VTk05P7h6BxzO4MmEZ615h1npe=QY9A@mail.gmail.com>
On 04/08/2014 06:22 PM, Fabio Estevam wrote:
>> Calibrating delay loop (skipped), value calculated using timer frequency.. 29.55 BogoMIPS (lpj=147777)
>>
>> Can you inspect code with "git-bisect"?
>
> This is the result:
>
> $ git bisect bad
> 1119c84aa3053bd415ba731ada1ecef24c8f82a2 is the first bad commit
> commit 1119c84aa3053bd415ba731ada1ecef24c8f82a2
> Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Date: Wed Jan 22 12:35:44 2014 +0100
>
> ARM: imx: enable delaytimer on the imx timer
>
> The imx can support timer-based delays, so implement this.
> Skips past jiffy calibration.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
>
The BogoMIPS output is different and based on the timer clock. The
delay loop now check the timer instead of counting cycles / loops.
The different output is not a bug.
Sebastian
prev parent reply other threads:[~2014-04-08 16:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-02 22:32 mx27 running too slow Fabio Estevam
2014-04-02 22:38 ` Fabio Estevam
2014-04-08 13:49 ` Fabio Estevam
2014-04-08 14:31 ` Alexander Shiyan
2014-04-08 16:22 ` Fabio Estevam
2014-04-08 16:27 ` Sebastian Andrzej Siewior [this message]
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