From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 15 Dec 2015 07:17:46 +0100 From: Gilles Chanteperdrix Message-ID: <20151215061746.GI16627@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> <20151214064253.GC7035@hermes.click-hack.org> <653fe8d9.f6c1.1519f7e1ec0.Coremail.ericvic@163.com> <20151214080316.GB27298@hermes.click-hack.org> <613bbb7c.109f7.1519f9cec39.Coremail.ericvic@163.com> <1f53ebaf.11cf1.1519fbd18eb.Coremail.ericvic@163.com> <20151214221910.GB16627@hermes.click-hack.org> <6dfbaaba.3bb5.151a3220b87.Coremail.ericvic@163.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6dfbaaba.3bb5.151a3220b87.Coremail.ericvic@163.com> Subject: Re: [Xenomai] ipipe-gch-ipipe-3.0-imx6q latency List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: eric Cc: "xenomai@xenomai.org" On Tue, Dec 15, 2015 at 08:54:56AM +0800, eric wrote: > > > >So the latency is below 100us, much less than 500us. It seems a bit > >high though, do you have any debug option enabled? Do you run this > >with a real-time load? > > > >-- > > Gilles. > >https://click-hack.org > > I can not run real-time load ,it always stop the flowing step. So i use some other load program .And I do not enabled debug option. > root@imx6qdlsolo:/opt/x3/bin# ./xeno-test > Started child 29228: /bin/sh /usr/xenomai/bin/xeno-test-run-wrapper ./xeno-test > ++ echo 0 > ++ testdir=/opt/imx6/smp3/xenomai-3.0.1/x3/bin > ++ /opt/imx6/smp3/xenomai-3.0.1/x3/bin/smokey --run > arith OK > bufp OK > iddp OK > leaks OK I was rather thinking about running the user-space load which creates high latencies with your own latency test. But if you are interested in running xeno-test, you should check its syntax: - either by running it with the -h or --help argument - or by checking its manual page, either on your disk or on xenomai website: https://xenomai.org/documentation/xenomai-3/html/man1/xeno-test/ - or by reading the page where we explain how we do the benchmarks we publish: https://xenomai.org/2014/07/benchmarking-with-xeno-test/ Regards. -- Gilles. https://click-hack.org