On Thursday 23 May 2019 12:34:16 am Randy Steiner via Emc-developers wrote:
> Robert, that is a good link and starts to confirm something else I > had found on tuning preempt_rt. As the new guy I will likely post > stuff that others already know and have reviewed. From what I can see > it looks like RTAI just had a release at version 5.2 with support for > kernel patches up to 4.14.111 For preempt_rt it looks since each IRQ > handler shows as a process they can be prioritized separately. In > peoples testing, has specific tuning been done to see if that impacts > the paraport performance since that appears to be a concern point? If > not, I can try that thread and see if I can vary the results. Also I > ran across another dual-kernel version for RT, https://xenomai.org/. > has this been looked at before? Thanks! > Randy Yes Randy, but its been several years now. I built a xenomai kernel for TLM, probably close to a decade back, and it worked well at the time. TLM is what my always drive broken 7x12 has been called, The Little Monster, but I've rebuilt it better and some hal trickery there to control the accel of the 1 hp spindle motor, plus getting rid of the willow tree the compound was, and giving it tapered gibs. It is pretty solid now, and a usefull tool today. I made a lot of stuff while converting the old Sheldon on it. Anyway the xenomai kernel drove it thru the parport just fine at the time. I would certainly encourage experimentation to be done by someone with a software stepper setup. But with the advent of the D525MW motherboards, and the Mesa 5i25's, I no longer have a software stepping setup to test it on. > On Wednesday, May 22, 2019, 10:19:38 PM MDT, Robert Murphy > <robert.mur...@gmx.com> wrote: > > Sorry for this second post......regarding latency, would this be an > option > > http://www.machinekit.io/docs/hal/threads-and-latency/ > > On 23/5/19 2:16 pm, Robert Murphy wrote: > > Could not the repos be setup from a preseed ? (I'm don't know a > > great deal about the LiveCD but I did make a custom stretch install > > disk ....for private use.... using a preseed file to config desktop, > > extra packages and repos) > > > > On 23/5/19 1:45 pm, Chris Radek wrote: > >> On Wed, May 22, 2019 at 01:31:15PM +0100, andy pugh wrote: > >>> We have a LiveCD based on Wheezy and RTAI but that is currently > >>> somewhat > >>> broken (the apt sources list points at files that are no longer > >>> there now > >>> that Wheezy is a long way past EOL) > >>> I have tried to respin that ISO using the archive repositiories. > >>> So far that isn't going all that well. > >> > >> I will work on this part. [...] 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> _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
