Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende ÜberarbeitungNächste ÜberarbeitungBeide Seiten der Revision | ||
embedded_systems:ethercat:test_and_tune_rt [2018-12-14 16:16] – mgehrig2 | embedded_systems:ethercat:test_and_tune_rt [2019-02-08 10:57] – mgehrig2 | ||
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In such systems the OS provides the clock for the whole system.\\ | In such systems the OS provides the clock for the whole system.\\ | ||
'' | '' | ||
+ | |||
+ | If the master cannot guarantee a stable clock, the masterShift mode is recommended. | ||
See [[embedded_systems: | See [[embedded_systems: | ||
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'' | '' | ||
+ | |||
+ | ==== Intel cstates ==== | ||
+ | Intel cstates indicate the power saving state of the processor. | ||
+ | These states can be locked with kernel parameters on the C0 state (no power saving measures). | ||
+ | |||
+ | {{: | ||
+ | |||
+ | Display current kernel parameters: | ||
+ | '' | ||
+ | |||
+ | Add the following [[software: | ||
+ | |||
+ | * cpuidle.off=1 | ||
+ | * intel_idle.max_cstate=0 | ||
+ | |||
+ | |||