From: Pavel Machek <pavel@ucw.cz>
To: kernel list <linux-kernel@vger.kernel.org>,
linux-acpi@vger.kernel.org, rui.zhang@intel.com,
rjw@rjwysocki.net, viresh.kumar@linaro.org,
linux-pm@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, hpa@zytor.com, x86@kernel.org
Subject: 5.2-rc2: low framerate in flightgear, cpu not running at full speed, thermal related?
Date: Sun, 9 Jun 2019 13:17:32 +0200 [thread overview]
Message-ID: <20190609111732.GA2885@amd> (raw)
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Hi!
When I start flightgear, I get framerates around 20 fps and cpu at
3GHz:
pavel@duo:~/bt$ cat /proc/cpuinfo | grep MHz
cpu MHz : 3027.471
cpu MHz : 2981.863
cpu MHz : 2958.352
cpu MHz : 2864.001
pavel@duo:~/bt$
(Ok, fgfs is really only running at single core, so why do both cores
run at 3GHz?)
But temperatures get quite high:
pavel@duo:~/bt$ sensors
thinkpad-isa-0000
Adapter: ISA adapter
fan1: 4485 RPM
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +98.0°C (high = +86.0°C, crit = +100.0°C)
Core 0: +98.0°C (high = +86.0°C, crit = +100.0°C)
Core 1: +91.0°C (high = +86.0°C, crit = +100.0°C)
And soon cpu goes to 1.5GHz range, with framerates going down to
12fps. That's a bit low.
Room temperature is 26Celsius.
The CPU is Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz . I guess it means
it should be able to sustain both cores running at 2.5GHz?
Any ideas? Were there any recent changes in that area?
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next reply other threads:[~2019-06-09 11:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-09 11:17 Pavel Machek [this message]
2019-06-09 11:23 ` 5.2-rc2: low framerate in flightgear, cpu not running at full speed, thermal related? Pavel Machek
2019-06-09 12:12 ` Pavel Machek
2019-06-09 13:55 ` Daniel Lezcano
2019-06-09 14:13 ` Zhang Rui
2019-06-11 10:12 ` Pavel Machek
2019-06-11 10:15 ` Viresh Kumar
2019-06-12 2:37 ` Doug Smythies
2019-06-12 21:44 ` Rafael J. Wysocki
2019-06-12 23:39 ` Doug Smythies
2019-06-13 8:11 ` Pavel Machek
2019-06-13 9:00 ` Rafael J. Wysocki
2019-06-13 8:52 ` Rafael J. Wysocki
2019-06-18 8:20 ` Doug Smythies
2019-06-18 8:34 ` Pavel Machek
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