Re: [Emc-developers] latency issues on i7 CPU

2021-08-17 Thread Alec Ari via Emc-developers
Oh, thanks Andy! On Monday, August 16, 2021, 10:46:49 PM UTC, andy pugh wrote: On Mon, 16 Aug 2021 at 19:58, Alec Ari via Emc-developers wrote: > > RTAI 5.3.1 for LinuxCNC is running pretty good right now with kernel > 4.19.195. If you need lower latency, that is my suggestion. I do

Re: [Emc-developers] latency issues on i7 CPU

2021-08-16 Thread andy pugh
On Mon, 16 Aug 2021 at 19:58, Alec Ari via Emc-developers wrote: > > RTAI 5.3.1 for LinuxCNC is running pretty good right now with kernel > 4.19.195. If you need lower latency, that is my suggestion. I don't know > anything about USC and it may not be compatible with the LinuxCNC RTAI hal > dri

Re: [Emc-developers] latency issues on i7 CPU

2021-08-16 Thread Alec Ari via Emc-developers
RTAI 5.3.1 for LinuxCNC is running pretty good right now with kernel 4.19.195. If you need lower latency, that is my suggestion. I don't know anything about USC and it may not be compatible with the LinuxCNC RTAI hal drivers, throwing this out there on a whim. On Sunday, August 15, 2021, 10

Re: [Emc-developers] latency issues on i7 CPU

2021-08-15 Thread andy pugh
On Sun, 15 Aug 2021 at 21:59, Jon Elson wrote: > He is getting rotten latency jitter, around 66 us. He > intends to use it with my Unversal Stepper Controller, which > needs better jitter than that. 66uS isn't great, but it is borderline OK for software stepping and I would expect it to be more

Re: [Emc-developers] latency issues on i7 CPU

2021-08-15 Thread Gene Heskett
On Sunday 15 August 2021 16:58:51 Jon Elson wrote: > I have a customer that has installed 2.8.2 from the iso onto > a system with the Intel i7 CPU. > > He is getting rotten latency jitter, around 66 us.  He > intends to use it with my Unversal Stepper Controller, which > needs better jitter than t