On 10/08/2012 01:02 PM, andy pugh wrote: > There shouldn't be any need for that much effort, you can boot from > the LiveCD and run the latency test from there, without making any > changes. Should only take 10 minutes, and if it fails then the machine is > still > just as it was.
That was my initial thought, as I've done the quick Live CD latency test on many used (free and almost free) PCs, but I thought maybe Roland had latency problems that cropped up in use, after the initial latency test. I had read of some machines with once-a-day kind of latency glitches. BTW - I've found very little correlation to processor speed and latency problems. I think all of the latency issues I've had were caused by rudely interrupting hardware. I'm sure some of those could have been fixed by disabling some hardware features, but with Craig's List full of old PCs, including a couple of guys in my area with persistent ads with plenty of PCs to choose from in a convenient one-stop-shopping experience, I didn't see any need to put much effort into it fixing a latency problem. I show up with two Live CDs and test the latency on two machines at once. If there's a problem, I go to the next machine. I've had good luck with the Compaq EVO (pizza box and tower configurations) and bad luck with Dell Optiplex towers. Here's a list of some known good and bad PCs. http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Latency-Test I love buying cheap PC hardware on Craig's List, installing LinuxCNC, peeling off the Windows badge from the case and replacing it with my little Tux Linux badges. I need to make some badges with the LinuxCNC version of Tux, with his hard hat, eye protection, and end mill. When buying cheap Craig's List PC hardware, I always feel like I'm buying droids from Jawas. On 10/08/2012 01:11 PM, Igor Chudov wrote: > I always surf the net while the CNC programs are running, I see > nothing wrong with that. I play music and watch youtube videos also. I plan on having a basement shop with LinuxCNC running a lathe, milling machine, and the laser I'm currently building. I'll probably surf and watch YouTube videos on one machine while one or two other machines are making parts. :-) I'm learning a lot by reading the messages posted to this list. It's like being immersed in LinuxCNC, much like the immersion technique for learning a foreign language. ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
