Hi,

I have a server with a Supermikro mainboard and two Xeon 3.0Ghz/2MB. When running kernel with SMP support the network performance is very poor, this is very visible on NFS traffic. When running UP kernel the performance is as espected and very good.

I have tried some different GB nics and the problems is static and independent of modell/brand.

I have also disabled as much as hardware possible, no usb, sio and etc.

Typical indicator is also that the load on the box is skyrocketing when it starts to serve nfs client, but the cpu load is very load.

Is there any way around this problem?

Regards,
RS

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