WebOct 17, 2012 · Does anyone know if IRQ affinity is supported under Linux for the ARM and the i.mx6? Here is what I have tried. Here is the output of /proc/interrupts showing that all the interrupts on system end up on cpu0. root@freescale /proc/irq$ cat /proc/interrupts. WebJan 27, 2014 · Introduction to Linux Interrupts and CPU SMP Affinity. by Sandeep Krishnan on January 27, 2014. Tweet. Interrupts are signal that are sent across IRQ …
4. The MSI Driver Guide HOWTO — The Linux Kernel documentation
WebMay 7, 2014 · One tuning tip was to decrease the InterruptThrottleRate thus decreasing the hard interrupts generated per second and thereby decreasing cpu usage (little bit). I'm using Ubuntu 11.1 (4 Cores, Intel(R) Core(TM) i5-3470S CPU @ 2.90GHz, 8GB , 1000 Mbits/sec Link) with ethernet driver intel e1000e. WebOct 18, 2024 · Hi, I’m using the Jetson AGX as a root port and a nVIDIA dev board as GPIO endpoint. I’m able to measured the Interrupt Latency between two gpio pins is well. By default, IRQ affinity is setup to the CPU0 core of the Jetson AGX. Here is a view of the IRQ associated with my GPIO driver : cat /proc/interrupts grep gpio 247: 0 0 0 0 0 0 0 0 … paperflow mobile 16 drawers organiser black
How to achieve low latency with 10Gbps Ethernet
WebOct 19, 2024 · For PCI and PCI-X*, install the Intel Network Adapter in the fastest available slot. Example 1: If you have a 64-bit PCI adapter, put it in a 66 MHz 64-bit PCI slot. Example 2: If you have a 64-bit PCI-X adapter, put in a 133 MHz (266 or 533 if available) 64-bit PCI-X slot. The slowest board on a bus dictates the maximum speed of the bus. WebSep 21, 2016 · Interrupt Coalescence (IC) is the number of usec waited or frames gathered to issue a hardware interrupt. A small value or big value both has side affects. If latency … WebSep 19, 2011 · I am having a hard time finding information about how to set cpu affinity for linux kernel (with all of its loaded modules), NOT for a specific process. This is because I want the kernel to run on CPU 0 all the time to handle I/O stuff, and not do any switches to run on other 3 CPUs because it may pollute L1 and L2 caches. Thanks in advance. Nulik paperflow metals 2022