Date: Fri, 29 Feb 2008 20:45:47 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: printk timestamps jumping back and forth in 2.6.25-rc.
Message-ID: <20080229194547.GC21249@elte.hu>
References: <f19298770802280626g5ee17328ldedf7658a9f26f56@mail.gmail.com> <20080228201315.GA30736@elte.hu> <20080228201613.GA30999@elte.hu> <f19298770802281324v1fc37cf4oebd680b81d0e0a2f@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <f19298770802281324v1fc37cf4oebd680b81d0e0a2f@mail.gmail.com>
User-Agent: Mutt/1.5.17 (2007-11-01)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1148
Lines: 30


* Alexey Zaytsev <alexey.zaytsev@gmail.com> wrote:

> On Thu, Feb 28, 2008 at 11:16 PM, Ingo Molnar <mingo@elte.hu> wrote:
> >
> >  * Ingo Molnar <mingo@elte.hu> wrote:
> >
> >  > > Anything else I can do?
> >  >
> >  > yes, please test the patch below - does it fix the problem?
> 
> The patch worked well, thanks
> 
> I still observe some uneven mouse behaviour during compilations (linux 
> kernel, make -j 6), like, when I slowly move the mouse, it would stop 
> for a split of a second every few seconds (the intervals are not 
> equal). On 2.6.23/24 it works very smooth. Of course, I can't say that 
> the scheduler is to be blamed. It was only my assumption because I 
> thought I might be confused by the non-monotinic time, which I see is 
> not the case. Any ideas, how to debug this?

could you try latencytop, what does it say, what type of scheduler (and 
other) delays are there?

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/