Problems with building Linux CNC source
07 Aug 2021 16:14 #217135
by smal
Replied by smal on topic Problems with building Linux CNC source
How does the processor speed affect general performance of the linuxcnc software? How computing intensive is actually linuxcnc? I assume if we have a loop at 1KHz this is not something which any generation of processors produced in the last 15 years can not handle?
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- robertspark
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07 Aug 2021 16:40 #217138
by robertspark
Replied by robertspark on topic Problems with building Linux CNC source
it's not the frequency it's the consistency.... real time means it needs to be ON TIME with little variance
some are good and some not so good as there are too many peripherals or power saving elements (like laptops).... hence all that is disabled as is speedstep , hyperthreading and c-states in the bios
some are good and some not so good as there are too many peripherals or power saving elements (like laptops).... hence all that is disabled as is speedstep , hyperthreading and c-states in the bios
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- tommylight
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07 Aug 2021 16:54 #217139
by tommylight
Replied by tommylight on topic Problems with building Linux CNC source
LinuxCNC can run even on some very old hardware, i had it running on a P2 @500MHz, still have it running on a AMD Geode @1000MHz, so if you feel lucky search the web for "coolcnc" and "Debian Dog LinuxCNC".
BTW, dissable hyperthreading, it is enabled on the PC you did the compiling, it is very bad for latency, although you are using a Mesa card so it might not matter at all.
BTW, dissable hyperthreading, it is enabled on the PC you did the compiling, it is very bad for latency, although you are using a Mesa card so it might not matter at all.
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07 Aug 2021 19:31 #217155
by smal
Replied by smal on topic Problems with building Linux CNC source
Can you go here a little bit more into detail regarding speedstep -> what this is and where is turned off, the same for hyper-threading and c-states. Is this set in the bios?
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- robertspark
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07 Aug 2021 20:40 #217156
by robertspark
Replied by robertspark on topic Problems with building Linux CNC source
yes, they are all bios settings
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