calculation of execution time of assembly code in a realtime program with large number of tasks

Hi,

I have some 20 lines of code in assembly .
I have various tasks running. How to calculate the total time of
execution of the code in assembly alone in Vxworks ?

Since any task might get invoked due to various reasons ,
Is putting one printf that prints the current time at the start of
assmbly and another printf at the end of assmbly code that prints the
current time the only way for caculating the assmbly code execution
time ?

Any other ideas.

Thx in advans,
Karthik Balaguru

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