Look in the /proc/irq/283 directory. There is a smp_affinity_list file which shows which CPUs will get the 283 interrupt. For you this file probably contains “0” (and smp_affinity probably contains “1”). You can write the CPU range to the smp_affinity_list file: echo 0-7 | sudo tee /proc/irq/283/smp_affinity_list Or you can write a bitmask, where each … Read more
It’s the process for managing multi-CPU threading. See SMP Affinity and Proper Interrupt Handling in Linux for the answers you seek on how to lower it down, but basically its the way the system handles masking the interrupts the are being caused by the CPU’s needing to be fed more thread streams or memory and … Read more
After digging through the documentation (based on the other answers here), this is the process I ended up using: Capture the ETW log of the problem The easiest way to do this is using the Windows Performance Recorder. I’m not sure when it first appeared, but seems to be built in on recent versions of … Read more