Evaluation of real time kernel performance

Mar 19, 2010 0 Replies

hi all,



I'm wondering what are the main parameters when talking about kernel performance...and when I say kernel I mean basic stuff, like context switching, blocking time, time for finding task of the highest priority etc...


I am familiar with following parameters:



-interrupt latency(which is, as I understand, directly proportional to length of sections of code where interrupts are disabled)


- task response time(time needed for task to respond to external event, meaning time from registering interrupt, to starting task by signaling for example semaphore from interrupt)


-jitter (interrupt latency jitter and task response time jitter)



I think it is usual to measure highest task response time, am I right?



Are there more parameters which are important for real time krenels?



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