Latency- Test

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4 years 6 months ago - 4 years 6 months ago #240793 by nhanpham
Latency- Test was created by nhanpham
hi all,

I have a 7i80db16 mesa board.
And I'm using Celeron J1900 2Ghz.

My latency test:

Servo thread: max Jitter: 50000(ns)
base thread(25us) max Jitter 143648(ns)

is This good to run linuxcnc?

Any Bios setting to improve Jitter?

thank you so much
Last edit: 4 years 6 months ago by nhanpham.

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4 years 6 months ago #240800 by tommylight
Replied by tommylight on topic Latency- Test
Seems OK, but to know for sure, connect the card to the PC and leave it on for a day or two or more.
www.youtube.com/@toma.cnc1
www.youtube.com/@toma.3d
www.youtube.com/@tomapc
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4 years 6 months ago #240831 by andypugh
Replied by andypugh on topic Latency- Test
If you are going to use a 7i80 then run the latency test without the base thread.

latency-test 1000000

will run a single thread at servo-rate
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4 years 6 months ago - 4 years 6 months ago #240860 by nhanpham
Replied by nhanpham on topic Latency- Test
i got :
Servo thread(1ms) : max interal 1046679 and max jitter : 46679

with this jitter, can my system work normally?

thank you
 
Last edit: 4 years 6 months ago by nhanpham.

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4 years 6 months ago #240862 by nhanpham
Replied by nhanpham on topic Latency- Test
hi

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4 years 6 months ago #240938 by andypugh
Replied by andypugh on topic Latency- Test
Yes, that is perfectly acceptable.
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