linux-kernel - Re: Interrupt latency on some 945GM platforms

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Date:	Thu, 16 Sep 2010 18:03:04 +0300
From:	Vasily Khoruzhick <anarsoul@...il.com>
To:	Sitsofe Wheeler <sitsofe@...oo.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: Interrupt latency on some 945GM platforms

В сообщении от 15 of September 2010 01:41:11 автор Sitsofe Wheeler написал:
> > >     processor.max_cstate=2
> > 
> > Nope, it doesn't work with max_cstate=2
> 
> Perhaps intel_idle is being used? Any mention of it in dmesg?

Sitsofe, maybe you misunderstood me, I mean with max_cstate=1 graphics is 
smooth, with higher values (i.e. max_cstate=2) graphics is jerky.

Btw, Jesse, any comments/solutions/workarounds except one with 
processor.max_cstate=1 in kernel commandline? Should I file a bug on fdo 
bugzilla?

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