This is the output when the machine is running at 80 Mbit/s and CPU usage is almost 100% interrupts:
Please note that this is after we rebooted with the SP kernel,
which didn't make any differences.
systat ifs:
IFACE STATE DESC IPKTS IBYTES IERRS OPKTS
OBYTES OERRS COLLS
em0 up:U 6772 8285095 0 5043
1251821 0 0
em1 dn:D 0 0 0 0
0 0 0
em2 up:U 5050 1268574 0 6762
8280262 0 0
em3 dn:D 0 0 0 0
0 0 0
em4 up:U 19 7136 0 774
361639 0
vmstat -iz:
interrupt total rate
irq0/clock 73974 100
irq144/acpi0 0 0
irq112/ppb2 0 0
irq112/em0 767598 1038
irq113/em1 0 0
irq113/ppb3 0 0
irq113/em2 1007863 1363
irq114/em3 0 0
irq114/em4 460696 623
irq115/em5 0 0
irq112/ppb7 0 0
irq96/uhci0 0 0
irq97/uhci1 0 0
irq96/uhci2 0 0
irq97/uhci3 0 0
irq96/ehci0 0 0
irq98/pciide0 2083 2
irq99/pciide1 0 0
irq99/ichiic0 0 0
irq145/com0 0 0
irq146/com1 0 0
irq147/pckbc0 304 0
irq148/pckbc0 0 0
Total 2312518 3129
The next step for us will be to swap the PCIe NICs to
regular PCI to see if that does anything.
On 2011-03-28 13:55, Jonathan Gray wrote:
> It sounds like you have an interrupt storm what does
> vmstat -iz show?
