Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen RevisionVorhergehende Überarbeitung
Nächste Überarbeitung
Vorhergehende Überarbeitung
embedded_systems:ethercat:test_and_tune_rt [2018-12-18 09:49] mgehrig2embedded_systems:ethercat:test_and_tune_rt [2023-04-11 11:12] (aktuell) Urs Graf
Zeile 22: Zeile 22:
 If the master cannot guarantee a stable clock, the masterShift mode is recommended. If the master cannot guarantee a stable clock, the masterShift mode is recommended.
  
-See [[embedded_systems:ethercat:distributed_clocks|Distributed Clocks]] for more information.+See [[embedded_systems:ethercat:understanding_ethercat:understanding_sync_with_dc|Distributed Clocks]] for more information.
  
  
Zeile 28: Zeile 28:
 ==== Cyclictest ==== ==== Cyclictest ====
 The Cyclictest is a software that can be used to easily measure the maximum jitter of a system. The Cyclictest is a software that can be used to easily measure the maximum jitter of a system.
-[[software:linux:cyclictest:start|This page]] explains how to install and use the software.+[[software:linux:realtime:cyclictest|Cyclictest]] explains how to install and use the software.
 === Quick Measurement === === Quick Measurement ===
 ''sudo ./cyclictest -p 80 -t5 -n'' ''sudo ./cyclictest -p 80 -t5 -n''
Zeile 61: Zeile 61:
 ''cat /proc/cmdline'' ''cat /proc/cmdline''
  
-Add kernel parameters:\\ +Add the following [[software:linux:linux_os:kernel_parameter|kernel parameters]]
-  - ''sudo nano /etc/default/grub'' + 
-  - Add ''cpuidle.off=1 intel_idle.max_cstate=0'' to the line: +  cpuidle.off=1 
-    * ''GRUB_CMDLINE_LINUX_DEFAULT="quiet splash'' +  * intel_idle.max_cstate=0 
-  - It should look like this: +
-    ''GRUB_CMDLINE_LINUX_DEFAULT="quiet splash cpuidle.off=1 intel_idle.max_cstate=0'' +
-  - ''sudo update-grub'' +
-  - reboot the pc+