Performance still a key for RTOSes

Performance still a key for RTOSes

In a few GPOSes, such as Linux v2.6, some degree of preemptibility has been added to the kernel. However, the intervals during which preemption may not occur are still much longer than those in a typical RTOS. Even in an RTOS, a lower-priority thread can inadvertently prevent a higher-priority threa...

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Veröffentlicht in:Electronic Engineering Times 2006-04 (1417), p.68
1. Verfasser: Leroux, Paul N
Format: Magazinearticle
Sprache:eng
Schlagworte:
Customization
Design
Electronics
Embedded systems
Linux
Operating systems
Preemption
Product design
Real time
Scheduling
Software
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Beschreibung
Zusammenfassung:In a few GPOSes, such as Linux v2.6, some degree of preemptibility has been added to the kernel. However, the intervals during which preemption may not occur are still much longer than those in a typical RTOS. Even in an RTOS, a lower-priority thread can inadvertently prevent a higher-priority thread from accessing the CPU-a condition known as priority inversion.
ISSN:0192-1541