Results of latency test, list of computers tested for use with LinuxCNC

seuchato wrote:

uugp
Nice find! Those values are very good, almost too good to be true! If however those values are true and at 9000 there are no random latency issues anymore, then you do have a very nice system for software stepping, too.
Kindly allow a couple of questions / remarks / recommendations:

1. Did you run any other program? I see 10 glxgears, but what about a browser, vimeo or youtube, ... while doing the latency test?
2. On board graphics is usually the way to go. Tracking down and elimination sparce spikes is a hard job, usually also with questionable success. So I'd stick with onboard graphics.
3. What do you mean by "... and obtain a good color ..."?
4. Seems the mobo is for Athlon IIX* cpus, which appeared around 2009. So, really old . I'd check the capacitors before making chips and/or have a spare one available. Not sure if such an old mobo is really a good idea as a cnc controller though.
   
   Greez
   chris

Hi seuchato

Sorry for the late reply.
1.YES!  If this can runwith10 glxgears, then running other programs will be run fine.But I'm just using it as a controller, no programs unrelated to the controller will run during operation. Gcode  transmitted over Samba.
2.YES! Many failed experimental results have been placed under the desk. The purpose of posting is to avoid repeating a tedious testing task.
3.The built-in graphics card is weak and only provides a dim desktop color. Opening an app will also cause blinking, although running LCNC is fine. So I am also hesitant about whether to use an external graphics card.
4.Checking the capacitance is necessary. Usually no problem. If you are lucky, you can buy brand new antiques. As long as it works, it's good, no matter whether it's new or old. A 40-nanometer chip can last for 20 years, exceeding the limit of mechanical wear and tear.
   I've been encountering all kinds of weird problems with the new PC, I just haven't posted them.