From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
asmirnov@kymetacorp.com, panos@kymetacorp.com
Subject: Re: i.MX6, PREEMPT-RT and interactive cpufreq governor
Date: Tue, 17 Feb 2015 09:35:24 +0100 [thread overview]
Message-ID: <20150217083523.GA26177@linutronix.de> (raw)
In-Reply-To: <CAHQ1cqGy5gwEUFLS79y3=5_KmUEO+Q3ygDB-jXBZj5yN5xVqUg@mail.gmail.com>
* Andrey Smirnov | 2014-06-10 11:52:05 [-0700]:
>Eventually I am hoping to disable any sorts of frequency scaling or
>power management on our system, but I am still curious to know if that
>is a known issue patches for which exist. Does anyone has any leads/suggestions?
You need to breakout of the preempt_disable() region. However having
cpufreq running will have major effect on your latency so this might not
what you want in the long term.
>Thank you,
>Andrey Smirnov
Sebastian
prev parent reply other threads:[~2015-02-17 8:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-10 18:52 i.MX6, PREEMPT-RT and interactive cpufreq governor Andrey Smirnov
2015-02-17 8:35 ` Sebastian Andrzej Siewior [this message]
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