From: J.Hwan Kim <hidden> Date: 2011-08-25 08:07:54
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.
Thanks in advance.
Best Regards,
J.Hwan Kim
From: Eric Dumazet <hidden> Date: 2011-08-25 08:21:20
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.
From: J.Hwan Kim <hidden> Date: 2011-08-25 10:00:46
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%
From: J.Hwan Kim <hidden> Date: 2011-08-25 10:19:17
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.
This is CPU load measured by "top" and my cores are 8.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3 root 20 0 0 0 0 R 99 0.0 70:05.48 ksoftirqd/0