Date: Sun, 21 Nov 2004 13:54:39 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Florian Schmidt <mista.tapas@gmx.net>
Cc: Lee Revell <rlrevell@joe-job.com>, linux-kernel@vger.kernel.org,
       Rui Nuno Capela <rncbc@rncbc.org>, Mark_H_Johnson@Raytheon.com,
       "K.R. Foley" <kr@cybsft.com>, Bill Huey <bhuey@lnxw.com>,
       Adam Heath <doogie@debian.org>, Thomas Gleixner <tglx@linutronix.de>,
       Michal Schmidt <xschmi00@stud.feec.vutbr.cz>,
       Fernando Pablo Lopez-Lezcano <nando@ccrma.Stanford.EDU>,
       Karsten Wiese <annabellesgarden@yahoo.de>,
       Gunther Persoons <gunther_persoons@spymac.com>, emann@mrv.com,
       Shane Shrybman <shrybman@aei.ca>, Amit Shah <amit.shah@codito.com>
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.29-0
Message-ID: <20041121125439.GA8224@elte.hu>
References: <20041117124234.GA25956@elte.hu> <20041118123521.GA29091@elte.hu> <20041118164612.GA17040@elte.hu> <1100920963.1424.1.camel@krustophenia.net> <20041120125536.GC8091@elte.hu> <1100971141.6879.18.camel@krustophenia.net> <20041120191403.GA16262@elte.hu> <1100975745.6879.35.camel@krustophenia.net> <20041120201155.6dc43c39@mango.fruits.de> <20041120214035.2deceaeb@mango.fruits.de>
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* Florian Schmidt <mista.tapas@gmx.net> wrote:

> Hmm, the max jitter rtc_wakeup shows at 1024hz is around 150us. Which
> seems a tiny bit large, too, as the rtc histogram shows a max wakeup
> latency of 16us..

yep, that's a bit too large too. What type of load does it need to
trigger such a 150 usec delay reliably?

	Ingo
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