Newbe - LinuxCNC or Mach3
- Rick G
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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
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- caprio
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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.
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- andypugh
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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.
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- Ozcnc
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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.
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