Real Time Archives

A survey of concurrency bugs

Posted by Matthew Eshlemanon March 1, 2021March 8, 2021in Commentary, Favorite Code Tricks, Real Time3 Comments

Concurrency is hard. Multithreaded code is hard. This post surveys common concurrency related bugs and outlines possible solutions.

The Anatomy of a Race Condition

Posted by Matthew Eshlemanon June 21, 2020in Best Practices, Commentary, Real Time3 Comments

What is a race condition? This post defines and explores this troublesome software flaw.

Premature optimization?

Posted by Matthew Eshlemanon June 10, 2017in Best Practices, Commentary, Real Time, ResearchLeave a comment

“...premature optimization is the root of all evil...” - Donald Knuth This well known quote by Donald Knuth represents hard-earned wisdom for which many software engineers should consider and broadly follow. Yet with any succinct rule we must be vigilant…

Brother, can you spare a GPIO?

Posted by Matthew Eshlemanon December 27, 2016February 16, 2022in Favorite Code Tricks, Real Time, Research3 Comments

Got a spare GPIO? A spare GPIO is an excellent tool to have in our troubleshooting and performance characterization toolbox.

Experiences with the Linux Real Time Scheduler

Check out my latest entry at embeddedrelated for a recent lesson learned when using the Linux Real Time Scheduler.