From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <52F15DB8.8080304@xenomai.org> Date: Tue, 04 Feb 2014 22:38:00 +0100 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <52DAE756.3070606@xenomai.org> <52DBC5FE.6060806@xenomai.org> <52DBD649.2000908@xenomai.org> <52EB6BBC.8040600@xenomai.org> <52EBE4B7.6060800@xenomai.org> <52EC054C.9070707@xenomai.org> <52EC1079.2040300@xenomai.org> <52ECF912.10308@xenomai.org> <52ECFB5F.4070907@xenomai.org> <52EEBFD7.8070901@xenomai.org> <52EECA63.6070609@xenomai.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai] Fwd: Kernel Compilation Problems List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Andy Pugh Cc: xenomai On 02/03/2014 01:25 AM, Andy Pugh wrote: > Now, where did I leave that bootable kernel? > Hi Andy. Another imx6 user reported that disabling the cache "write-allocate" did improve performances tremendously, I just tried on omap4, and latencies seem to improve. So, this looks like the solution. The patch you will find here: http://sisyphus.hd.free.fr/~gilles/mx6.patch Disables "write-allocate" for imx6 using the L2 cache controller auxiliary register bits 23 and 24. Regards. -- Gilles.