Subject: Re: how to distribute irqs of ixgbevf

From: "J.Hwan Kim" <[email-masked]>
Date: Thu, 25 Aug 2011 19:00:41 +0900

On 2011년 08월 25일 17:21, Eric Dumazet wrote:
> Le jeudi 25 août 2011 à 17:07 +0900, J.Hwan Kim a écrit :
>> 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%