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mycnc:sbc [2018/09/06 13:23] skirillovmycnc:sbc [2018/10/10 23:32] (current) skirillov
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-==== Single Board Computer (SBC) perfofmance issue ====+==== Single Board Computer (SBC) performance issue ====
  
 We have found an issue with OpenGL-ES driver implementation for single board computers (Tinker Board, Odroid-C2 etc). We have found an issue with OpenGL-ES driver implementation for single board computers (Tinker Board, Odroid-C2 etc).
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-This CPU overloading might lead to CPU overheat, keyboard event delays, job stope (due to command buffer feed lags in the controller) and other system faults.+This CPU overloading might lead to CPU overheat, keyboard event delays, job stops (due to command buffer feed lags in the controller) and other system faults.
  
-To test what is the reason ob CPU overloading we added "Disable Cursor" checkbox in 3D visualisation setting. +To test what is the reason of CPU overloading we added "Disable Cursor" checkbox in 3D visualisation setting. 
 {{mycnc:opengl:mycnc-disable-cursor.png}} {{mycnc:opengl:mycnc-disable-cursor.png}}
  
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 If this checkbox is checked, the visualisation widget ignores position messages from the myCNC controller, does not update new work position on visualisation widget (a red cursor) and does not refresh a complete scene. If this checkbox is checked, the visualisation widget ignores position messages from the myCNC controller, does not update new work position on visualisation widget (a red cursor) and does not refresh a complete scene.
  
-The result is shown in a screenshot below. CPU loading drops about 5 times. Only 1 core is loaded to 40%, the rest cores are loaded less. myCNC takes only 30% from one core, the rest is taken by the Linux system.+The result is shown in a screenshot below. CPU loading drops about 5 times. Only 1 core is loaded to 40%, the rest cores are loaded less. myCNC loads just 1 core mostly, the rest is taken by the Linux system.
  
  
mycnc/sbc.txt · Last modified: 2018/10/10 23:32 by skirillov

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