Accurate Time Where It’s Needed
While the science of timekeeping has fascinated many over the years, what counts most today is delivering accurate time to where it’s needed. If a person needs the time they may look at their phone to see an accurate time that is distributed through the mobile network. If an application program running on a computer needs the time it may execute a command that accesses the system clock. That application is a consumer of the time and not a clock. Ultimately, it is the accuracy and precision of the time delivered to the application program that matters most. The more accurate and precise the time requirement is, the harder it is to deliver it. This whitepaper explores the challenges in delivering sub-microsecond accurate time to a Linux program, and it will present IEEE 1588 Precise Time Protocol (PTP) solutions and test data showing how to overcome those challenges.
Author: Paul Skoog
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