Messages in this thread | | | Subject | Re: [stable] regression in 2.6.35.4 'load is to heavy (video subsystem?)' | Date | Wed, 22 Sep 2010 11:42:41 +0200 | From | Karsten Mehrhoff <> |
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[Am 22.09.2010, 02:01 Uhr, schrieb Greg KH <greg@kroah.com>]
> On Tue, Sep 21, 2010 at 04:50:07PM -0700, Andrew Morton wrote: >> On Mon, 30 Aug 2010 10:02:36 +0200 >> Karsten Mehrhoff <kawime@gmx.de> wrote: >> >>> Using the same .config from 2.6.35.3 to compile 2.5.36.4 results in a >>> heavy load with 2.6.35.4. >> >> A regression within -stable is rather bad. > > Agreed. > >>> Example: >>> >>> Difference between 2.6.35.1/2/3 and 2.6.35.4 while watching some >> videos: >>> 2.6.35.4 switches the cpu for flash videos in the browser (opera or >>> iceweasel) or other video outputs to 2200/2400/2600 MHz meanwhile >> 2.6.35.3 >>> (or older) stays at 1000 Mhz. That results in a higher cpu >> temperature, >>> more power consumption and so one. >>> >>> Using other GUI program results in nearly the same problems with >> 2.6.35.4, >>> so this kernel is unusable for me. >>> >>> Results to see the difference for the same action >>> 2.6.35.4 >>> Core0 Temp: +45.0__C >>> Core1 Temp: +43.0__C >>> cpu MHz: 2200.000 or higher >>> >>> 2.6.35.3 >>> Core0 Temp: +32.0__C >>> Core1 Temp: +31.0__C >>> cpu MHz: 1000.000 (max. 1800, but falling back to 1000) > > Can you run 'git bisect' between 2.6.35.3 and 2.6.35.4 to try to find > out the offending patch that caused this issue? > > thanks, > > greg k-h
Same for 2.6.35.5 using 256.53
For your info, I did run some tests today using a nVidia 9500GT
Kernel | Performance with NVIDIA-Linux-x86_64- | 256.53 | 260.19.04 (BETA) ---------------------------------------------------------- 2.6.35.3 | good | good ---------------------------------------------------------- 2.6.35.4 | bad | not tested ---------------------------------------------------------- 2.6.35.5 | bad | ~ good ---------------------------------------------------------- 2.6.36-rc4 | | (git1-5) | failed | good ---------------------------------------------------------- 2.6.36-rc4 | | (git1) | failed | good ----------------------------------------------------------
Karsten
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