From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 14 Dec 2015 07:42:53 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Message-ID: <20151214064253.GC7035@hermes.click-hack.org>
References: <44cb82ce.15337.151812ff429.Coremail.ericvic@163.com>
 <20151208112320.GA24418@hermes.click-hack.org>
 <5d8dd3ae.5ccc.1519e440866.Coremail.ericvic@163.com>
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Subject: Re: [Xenomai] ipipe-gch-ipipe-3.0-imx6q latency
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To: eric <ericvic@163.com>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>

On Mon, Dec 14, 2015 at 10:13:57AM +0800, eric wrote:
> It is much better with 3.18.20 ,it is  the test result with xenomai-3.0.1   500us cycle ,still a little big ,thanks!
> -sh-2.05b# [  154.812032] pmax: 0.597303 ms
> [  245.216863] pmax: 0.600940 ms
> [  249.992395] pmax: 0.603288 ms
> [  277.280006] pmax: 0.610470 ms

I am not sure about what you measure, but if you observe a 500us
latency, you have a problem.

What latency does Xenomai latency test give?

-- 
					    Gilles.
https://click-hack.org