Std one that's on the Linuxcnc ISO. Tho I added Caja for my file manager, Mate Terminal and the gvfs bits that are missing. Caja & Mate terminal pull in Mate libs. I just prefer those 2 over the xfce4 stuff. Oh yeah I also pulled in the xfce4-power-manager package.
Didn't make a difference whether I ran the CPU hog script or not. I just don't get it. Two machines that are the same (apart from BIOS) and getting different results.
Tho I noticed in your testing you have no parallel port & my machine reports a parallel port. All parallel port modules load.
I worked on it for while. Used my Mint respin, then used a standard Mint ISO and followed tommy's instructions, including the kernel mentioned in that thread. Snd modules were blacklisted in all tests, different combos of kernel command lines.
Last edit: 4 years 9 months ago by ALittleOffTheRails.
When you run the attached script when trying to do a latency test what cpu frequency vales are you seeing?
Joco,
I hope you will not mind me, adding this to my scripts for latency testing?
Have to figure out on where and how it is usefull and what to protocol.
Greez
Chris
Std one that's on the Linuxcnc ISO. Tho I added Caja for my file manager, Mate Terminal and the gvfs bits that are missing. Caja & Mate terminal pull in Mate libs. I just prefer those 2 over the xfce4 stuff. Oh yeah I also pulled in the xfce4-power-manager package.
Didn't make a difference whether I ran the CPU hog script or not. I just don't get it. Two machines that are the same (apart from BIOS) and getting different results.
Tho I noticed in your testing you have no parallel port & my machine reports a parallel port. All parallel port modules load.
I worked on it for while. Used my Mint respin, then used a standard Mint ISO and followed tommy's instructions, including the kernel mentioned in that thread. Snd modules were blacklisted in all tests, different combos of kernel command lines.
ALittleOffTheRails
Kernels do have a major impact. It is sometimes a lot of trial and error to find the best one.
"Two machines that are the same (apart from BIOS) and getting different results." I still have a dell T3500 that I can't get decent latency values with, while someone else got very good results. I did almost everything on this robust piece of hardware: Ram, CPU, Disc, Bios, Distro, Kernels, window manager, desktop, boot cmd line, you name it: no joy, not at all. A friend of mine has another T3500. It is still serving his home. Once decomissioned, I was promised to get it for some testing.
RAM: next weekend I might get time to do some (limited) comparison of a known good (imho) machine (Dell 980) that I can run with 1, 2 or 4 x 4GB Ram. I will edit this post to add the link with the results. Please add your findings with 1x and 2x 4GB Ram. A remark: I remember having mixed results with mixed Rams.
Yep I know about kernels. I spent a fair bit of time testing before I released my Mint respin. Which seemed to work well, even on the Odroid H2 plus once I added the Nic module.
For the T610 it would seem that the kernel on the official Linuxcnc 2.8.2 iso gives best results, from my experience.
Anyways if more academic than anything else at the moment, as I still have some work left to do to get the mill back to work before I start on the lathe, tho I’m kind of in 2 minds about that.
So no more collecting computer hardware for the time being as I need some spare cash to get some fibre glass supplies.
When you run the attached script when trying to do a latency test what cpu frequency vales are you seeing?
Joco,
I hope you will not mind me, adding this to my scripts for latency testing?
Have to figure out on where and how it is usefull and what to protocol.
Greez
Chris
