Measuring Real-Time Performance Of An RTOS - Express Logic

Recommendations

Info

Interrupt Handling • Threads use software interrupts to trigger preemption • Reporting thread “prints” results every 30 seconds – Thread1 suspends – Thread5 forces interrupt – Interrupt handler resumes Thread1 – Print thread is top priority, runs every 30 seconds Thread0 Print Sleep(10) Loop Interrupt Handler Count Resume Thread_1 Thread1 Count Suspend Loop Thread5 Count *TRAP* Loop 12
Message Processing • A Thread sends a message to a queue from which it is retrieved by the same thread. • This test consists of a thread sending a 16 byte message to a queue and retrieving the same 16 byte message from the queue. – After the send/receive sequence is complete, the thread increments its run counter Send Message Retrieve Message Count++ Loop Message Queue 13
Page 1 and 2: Express Logic, Inc. © 2006, Expres
Page 3 and 4: Most Important RTOS Capabilities
Page 5 and 6: Thread-Metric: An Open RTOS Benchma
Page 7 and 8: How Are Services Measured? • Lots
Page 9 and 10: Cooperative Context Switching • T
Page 11: Interrupt Handling • Must conside
Page 15 and 16: Memory Allocation • Applications
Page 17 and 18: Test Environment • ARM Versatile
Page 19 and 20: How To Get The Code • Download fr

Measuring Real-Time Performance Of An RTOS - Express Logic

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?