Messages in this thread | | | Date | Sun, 9 Jun 2019 13:17:32 +0200 | From | Pavel Machek <> | Subject | 5.2-rc2: low framerate in flightgear, cpu not running at full speed, thermal related? |
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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 [unhandled content-type:application/pgp-signature] | |