error: version.h not found - Is the kernel headers
the installation was succesful, see the screenshot:
Well done
What do you think about? This does not look good, right?
I have no idea what your computer is.
A lot of people would be happy with 17K.
The kernel config you used is for a SMP kernel with 4 cores.
You will need to target your precise processor type to get it lower.
You probably also need to look at isolcpus=0,1,2 (for a quad core) on the kernel boot line in GRUB
to shift everything onto 1 core
I have built a UP version of this kernel for my P4s in the workshop, which runs at 5K - 9K latency
That requires some particular changes to the config regards LAPIC to enable realtime to work.
regards
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Please look at the result of my latency test.
What do you think about? This does not look good, right?
17k is perfectly OK. You will be able to make more steps per second at 30,000 ns Base thread than your steppers can handle. (1300 rpm even at x8 microstepping)
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Mainboard: ASUS P5G41T-M LX, Processor: Intel Dual-Core E3500, 2x2700MHz and RAM: 2048 MBI have no idea what your computer is.
I had already made this changeThe kernel config you used is for a SMP kernel with 4 cores.
You will need to target your precise processor type to get it lower.
You probably also need to look at isolcpus=0,1,2 (for a quad core) on the kernel boot line in GRUB
to shift everything onto 1 core
I isolate the cpu 1 with this command: "isolcpus=1" and I have performed the latency test again. This is the result.
Please can you explain me how do you calculate the 17k from the first test data?
Regards,
Taffou
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I isolate the cpu 1 with this command: "isolcpus=1" and I have performed the latency test again. This is the result.
That looks excellent, but you need to run it rather longer.
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That looks excellent, but you need to run it rather longer.
Taffou
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13k is good.
There is a GUI-based latency test on the CNC menu, and you might want to leave that running for a day while you use the machine hard (web, music, CAD) and see just how high you can force it.
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Please can you explain me how do you calculate the 17k from the first test data?
The column <ovl max> is base thread max jitter
As Andy says you need to do the graphical latency-test with glxgears running , window moves etc.
You have not taxed the graphics system using a text based test in a terminal, you may find you get a quite higher figure
regards
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