Am Freitag, 2. November 2018 schrieb Gene Heskett: > On Friday 02 November 2018 03:55:53 Dr. Nikolaus Klepp wrote: > > > Am Sonntag, 28. Oktober 2018 schrieb Gene Heskett: > > > On Sunday 28 October 2018 16:57:42 andre_debian@... wrote: > > > > www.engadget.com/2018/10/28/ibm-buys-red-hat/ > > > > > > > > Is it a good new ? > > > > Can this new make reviving Linux in the public market, > > > > or only in the professional cloud market ? > > > > > > > > André > > > > > > Best question of the year. > > > > > > Next best is what to become of amanda? Amanda was just bought by > > > BETSOL, whomever they might be, and they've sent one of their folks > > > to the amanda list to quell the talk of a fork. But so far all we've > > > seen is talk, and the users, including me who has been using it for > > > nearly 20 years, are getting nervous. They haven't even put the lead > > > maintainer on their payroll, and the undertones are rising in > > > volume. > > > > > > I suppose at some point, debian will be an acquisition target as the > > > commercial folks see it as something they can do a Red Hat with when > > > Red Hat spun the Fedora as a free red hat, but they as expected used > > > the fedora users as lab rats, trying new ways that often didn't work > > > all that well. So I gave them feedback until I was tired of a half > > > broken system all the time, and in about 2006 LinuxCNC was made as a > > > respin of Ubuntu, but that petered out and went to debian in about > > > 2012. Where it still is, while our developers are busting butt > > > trying to get the performance needed out rt-prempt patches for the > > > later 64 bit kernels, which are in fact sloths compared to the 32 > > > bit patched versions in the 3.2.x releases. Much research at > > > restoring that has been done, but its not yet been good enough to be > > > accepted into mainline. > > > > > > Steven R. has been a frequent contributer to the linux-rt list for > > > quite a while, and here is his off the cuff talk on it from a couple > > > days back, basically issueing you can and you cant's to the rest of > > > the developers as they code up new pieces for the kernel: > > > > > > <https://www.youtube.com/watch?v=BxJm-Ujipcg> > > > > > > There are some folks from red hat there on that list too. > > > > > > Make of it what you can. IBM, like Dell, has over the last 2 decades > > > made some quality hardware. So I expect the cash infusion may allow > > > some of the oldtimers in North Carolina to retire, and new blood > > > will be brought on board, not necessarily from the ranks. What > > > effect, good or bad, that will have remains to be seen. Watching > > > the stock market for fresh RHAT activity might be educational. > > > > Hi Gene! > > > > I'm relieved that I'm nit the only one struggling with linux-rt - my > > latency numbers are horrible, no matter what hardware I use. But at > > least I managed to get linuxcnc + preempt-rt + trinity working on my > > raspberrypi3+. If you are interested, I can upload a rpi image for > > testing :-) > > > > Nik > > Nik. yes I'd be interested in that, although I am ATM, down one of my > other machines & have about 75% of the stuff ordered to put the two > BoB's in a separate box with hopefully better psu's. A $3 buck regulator > died a horrible death, spitting epoxy off the top of the chip, and > putting 35 volts on the 5 volt BoB supply buss for the few millisecs of > the death throes. But the big lathe, running on an r-pi-3b is working > well. But any improvements in latency would be appreciated. .075 > milliseconds on the servo-thread is tolerable, but its pretty wide in > terms of following error. > > > I've 32Gb sd's to put it on. > > Hi Gene! I finally managed to upload the compressed image. :-) http://samhain.5gbfree.com/rpi3_tde_linuxcnc_rt_2018.11.06.img.xz.md5 http://samhain.5gbfree.com/rpi3_tde_linuxcnc_rt_2018.11.06.img.xz $ md5sum rpi3_tde_linuxcnc_rt_2018.11.06.img.xz 2edd56042688bbb73639f76ad6fc9dce Imagesize is ~ 1.6G (1742714332 bytes) compressed or ~ 7G uncomressed. TDE: English (default) / German, autologin as "pi" In folder "~pi/linuxcnc-dev/" you'll find: - rpi-hal_gpio-calculator.sh : my tool to calculate the masks for gpio-stuff - linux : kernelesource - linuxcnc-dev : linuxcnc sources, compiled for RIP - linuxcnc : startscript for linuxcnc (also linked on desktop) - latency-histogram: same for latency-histogram Linuxcnc config called "RaspberryPi/rpi3b-2050vel" is my testconfig. The kernel and kernel parameters are from http://wiki.linuxcnc.org/cgi-bin/wiki.pl?RPi3BPreemptRT , but I'm not sure if they are the holy grale. Currently I am compiling a stripped down kernel (maybe that will work better). Oh, I disabled bluetooth and wifi. Enjoy Nik -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ...