On Sat, 19 Mar 2016 13:50:22 -0400 Gene Heskett <ghesk...@wdtv.com> wrote:
> On Saturday 19 March 2016 13:08:43 bari wrote: > > > All of memleak's work on RTAI the past few years (which is now RTAI 5 > > without a single credit) was done on AMD hardware made in the past 7 > > years. > > No credits? 'Scuse me but thats not excusable, PM needs to understand > TANSTAAFL. > > > > Every bit of AMD silicon we touched ran under 25uS on the latency > > test. Just for fun we had a few tweaked <4uS max jitter. > > This is not an rtai kernel, but 3.16.0-0.bpo.4-amd64. I am pretty sure I read about some disagreement between RTAI and preemt RT. I tried RTAI but had problem with Ethernet, since did not have enough time to look at the driver myself I used Premt RT. I am thinking about split in two with real time threads on micro controller and the computer for the user interface. It would also be a flexible solution then it come to choice of user interface but require extra hardware. > > latencytest is running here right now, and while the 25 u-s loop last > interval displayed is consistently in the 600ns area, the Max Jitter is > horrible at 10050977, and Max Interval of 10075977 which is reason > enough I'd never in my right mind ever attempt to drive machinery with > it without a 5i25 or better card doing the stepper generation, even then > 100 milliseconds of lag would trigger the cards WDT, and quite > justifiably so. > > > IME can't be turned off since for security reasons. Security from you. > > Gee, thanks intel. I love you too... > > > It would be interesting to monitor it on wireshark to see what > > triggers it to phone home or when it's controlled by hackers. Maybe it > > kicks in when you trigger interest by using certain words or visit > > certain websites. > > > > On 03/19/2016 11:55 AM, Gene Heskett wrote: > > > And no way to turn it off? Makes me glad this machine is an old old > > > quad core phenom. I haven't seen a thing I couldn't ID in wiresharks > > > output. > > > > > > But 3 of the other machines here, those running real machinery, are > > > intel, 2-3 yo atoms, or 5-6 yo in a Dell Compact. AMD stuff cannot > > > do real time since about K6, which was tolerable, ran one for quite > > > a spell till I replaced it with the atom stuff, reducing my power > > > bill. > > > > > > I would assume, if they are "calling home" that I could see the > > > traffic with wireshark or tcpdump? Hard to see in all the other > > > traffic as I maintain an sshfs share, and an ssh login session to > > > them all from here. So its pretty noisy in terms of net traffic here > > > at the Heskett Cottage. > > > > ---------------------------------------------------------------------- > >-------- Transform Data into Opportunity. > > Accelerate data analysis in your applications with > > Intel Data Analytics Acceleration Library. > > Click to learn more. > > http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Genes Web page <http://geneslinuxbox.net:6309/gene> > > ------------------------------------------------------------------------------ > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
