Newbe - LinuxCNC or Mach3
17 Jan 2016 21:44 - 17 Jan 2016 21:45 #68622
by Rick G
Replied by Rick G on topic Newbe - LinuxCNC or Mach3
Take a look here...
linuxcnc.org/docs/2.5/html/install/Latency_Test.html
and...
linuxcnc.org/docs/html/config/stepconf.html
Rick G
linuxcnc.org/docs/2.5/html/install/Latency_Test.html
and...
linuxcnc.org/docs/html/config/stepconf.html
Rick G
Last edit: 17 Jan 2016 21:45 by Rick G.
The following user(s) said Thank You: caprio
Please Log in or Create an account to join the conversation.
18 Jan 2016 18:13 #68703
by caprio
Replied by caprio on topic Newbe - LinuxCNC or Mach3
Hmmm, So outta the box fresh install and update of LinuxCNC 2.7.3 I'm seeing latency of:
Servo 42237(ns)
Base 26936(ns)
Not even close to what some of you are reporting (15000, 8000)
I'm using an ATI X1300
I tried the isolcpus and irqbalance tricvks by adding the kernel options but that didn't work well.
The Latency actually jumped to 46910(ns) . After a bit more research it appears that isolcpus is
no longer needed/used.
Servo 42237(ns)
Base 26936(ns)
Not even close to what some of you are reporting (15000, 8000)
I'm using an ATI X1300
I tried the isolcpus and irqbalance tricvks by adding the kernel options but that didn't work well.
The Latency actually jumped to 46910(ns) . After a bit more research it appears that isolcpus is
no longer needed/used.
Please Log in or Create an account to join the conversation.
18 Jan 2016 18:22 #68706
by andypugh
That will do. It's not spectacular, but it is quite good enough.
Replied by andypugh on topic Newbe - LinuxCNC or Mach3
Hmmm, So outta the box fresh install and update of LinuxCNC 2.7.3 I'm seeing latency of:
Servo 42237(ns)
Base 26936(ns)
That will do. It's not spectacular, but it is quite good enough.
Please Log in or Create an account to join the conversation.
18 Jan 2016 18:27 #68707
by Ozcnc
Replied by Ozcnc on topic Newbe - LinuxCNC or Mach3
Before I got some tweaking going I was sitting at 75000 with spikes taking it up to 150000.
But mine wasn't usable.
But mine wasn't usable.
Please Log in or Create an account to join the conversation.
Time to create page: 0.139 seconds