From: bugzilla-daemon@bugzilla.kernel.org
To: cpufreq@vger.kernel.org
Subject: [Bug 50721] CPU freqs stay stuck at max after reboot with on-demand governor set - i7-2630QM
Date: Tue, 8 Jan 2013 03:01:37 +0000 (UTC) [thread overview]
Message-ID: <20130108030138.0DAC311FE9A@bugzilla.kernel.org> (raw)
In-Reply-To: <bug-50721-12968@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=50721
--- Comment #10 from Len Brown <lenb@kernel.org> 2013-01-08 03:01:37 ---
turbostat -v will tell you the max turbo for this processor.
Yes, it is normal to run above the TSC frequency --
indeed, that is exactly what turbo-mode is for...
can you force the processors to go slower by writing to sysfs?
eg. as root
cd /sys/devices/system/cpu/cpu0/cpufreq
cat scaling_max_freq
cat scaling_min_freq > scaling_max_freq
cat scaling_max_freq
and see if you can get that cpu to slow down, as shown by turbostat.
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next prev parent reply other threads:[~2013-01-08 3:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-19 5:45 [Bug 50721] New: CPU freqs stay stuck at max after reboot with on-demand governor set bugzilla-daemon
2012-11-19 5:45 ` [Bug 50721] " bugzilla-daemon
2012-11-20 2:56 ` [Bug 50721] CPU freqs stay stuck at max after reboot with on-demand governor set - i7-2630QM bugzilla-daemon
2012-11-20 23:30 ` bugzilla-daemon
2012-11-24 1:11 ` bugzilla-daemon
2012-11-27 2:52 ` bugzilla-daemon
2012-11-27 3:43 ` bugzilla-daemon
2012-12-03 3:14 ` bugzilla-daemon
2012-12-04 1:01 ` bugzilla-daemon
2012-12-23 14:47 ` bugzilla-daemon
2013-01-08 3:01 ` bugzilla-daemon [this message]
2013-01-14 1:26 ` bugzilla-daemon
2013-01-14 1:30 ` bugzilla-daemon
2013-01-17 21:24 ` Elliot Wolk
2013-01-22 10:53 ` bugzilla-daemon
2013-03-14 16:07 ` bugzilla-daemon
2013-03-18 17:18 ` bugzilla-daemon
2013-03-24 22:09 ` bugzilla-daemon
2013-03-25 2:56 ` bugzilla-daemon
2013-04-13 17:43 ` bugzilla-daemon
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