Realfeel Test of the Preemptible Kernel Patch (Linux Journal)

Here's a Linux Journal article about the preemptible kernel patch, and its effect on the interrupt latency of a Linux system. The patch reduces the measured interrupt latency of the system, making it more appropriate for real-time applications. "For this work, interrupt latency is measured with an open benchmark called Realfeel, written by Mark Hahn. Realfeel issues periodic interrupts and measures the time needed for the computer to respond to these interrupts. Response times vary from interrupt to interrupt. Realfeel measures these interrupts and produces a histogram by putting the measurements into bins."

---

(Log in to post comments)