Re: how to distribute irqs of ixgbevf

On 2011년 08월 25일 17:21, Eric Dumazet wrote:

Le jeudi 25 août 2011 à 17:07 +0900, J.Hwan Kim a écrit :

quoted

Hi, everyone

The interrupts of my ixgbevf driver occurs only Core 0
although the user space "irqbalance" serivce is working.

How can I distribute the interrupt of RX in ixgbevf to all cores?

cat /proc/interrupts | grep "isv"
    97:          8          0          0          0          0
0          0          0   PCI-MSI-edge      isv0-rx-0
    99:          7          0          0          0          0
0          0          0   PCI-MSI-edge      isv0:lsc
   103:       2059      0          0          0          0
0          0          0   PCI-MSI-edge      isv2-rx-0
   104:         14        0          0          0          0
0          0          0   PCI-MSI-edge      isv2-tx-0
   105:          1         0          0          0          0
0          0          0   PCI-MSI-edge      isv2:mbx

"isv" is netdevice name of my ixgbevf.

Given load is very small, irqbalance chose to send interrupts on a
single cpu.

When I measure cpu load with "top", it indicates CPU load around 99%