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From: Thomas Gleixner <tglx@linutronix.de>
To: Milan Plzik <milan.plzik@gmail.com>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: Possible CPU_IDLE bug [WAS: Re: Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT)]
Date: Thu, 14 Aug 2008 11:00:58 +0200 (CEST)	[thread overview]
Message-ID: <alpine.LFD.1.10.0808141100100.3243@apollo.tec.linutronix.de> (raw)
In-Reply-To: <1218701151.4285.9.camel@localhost>

On Thu, 14 Aug 2008, Milan Plzik wrote:
>   I tried it just now, is performs a bit better than 2.6.26 (e.g. I
> don't get that "press any key unless nothing happens" states), even
> reports a bit more reasonable values of wakeups, but the system
> sometimes becomes rather slow (e.g. when playing video). I was not able
> to compile fglrx driver, so I had to change it to radeon one. And also,
> the number of wakeups reported is not very convincing, though, it
> changes from 300 to 600 (which is ~ two times the sum of wakeups)
> without any reason, and sometimes goes even higher.
> 
>   I tried to use nolapic_timer option, but it didn't help.

Can you please try "hpet=disable" on the kernel command line ?

Thanks,
	tglx

  reply	other threads:[~2008-08-14  9:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-12 18:33 Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT) Milan Plzik
2008-08-13 10:58 ` Milan Plzik
2008-08-13 13:05   ` Pavel Machek
2008-08-13 14:33     ` Milan Plzik
2008-08-13 14:16   ` Possible CPU_IDLE bug [WAS: Re: Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT)] Milan Plzik
2008-08-13 18:14     ` Pallipadi, Venkatesh
2008-08-13 20:21       ` Milan Plzik
2008-08-13 21:22         ` Pallipadi, Venkatesh
2008-08-14  8:05           ` Milan Plzik
2008-08-14  9:00             ` Thomas Gleixner [this message]
2008-08-14 11:40               ` Milan Plzik
2008-08-14 13:28                 ` Milan Plzik
2008-08-15 11:46           ` Milan Plzik
2008-08-13 20:17   ` Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT) Andi Kleen
2008-08-13 21:04     ` Milan Plzik

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