JVM Pegs CRIO at 100% CPU Regardless of Code

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JVM Pegs CRIO at 100% CPU Regardless of Code

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25-03-2013, 16:02

Tom Bottiglieri Tom Bottiglieri is offline

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Re: JVM Pegs CRIO at 100% CPU Regardless of Code

Another thing to watch out for is SmartDashboard stuff. We had a SmartDashboard :: putData in one of our controller classes (that runs iteratively in a separate thread) which pegged us near 100%. Calling this 50 times less per second (aka 50HZ to 0Hz) brought us from near 100% CPU usage to ~50%.

(Without looking at the code, I'm guessing without a receiving dashboard app we were spamming handshakes?)

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