Hi Mark,

On 1/15/07, Mark Ryden <[EMAIL PROTECTED]> wrote:
I have a machine with 2 dual core CPUs. This machine runs Fedora Core 6.
I have two Intel e1000 GigaBit network cards on this machine; I use bonding so
that the machine assigns the same IP address to both NICs ;

cat /proc/interrupts shops something like this:
                                CPU0       CPU1         CPU2         CPU3
 50:    3359337          0          0          0         PCI-MSI  eth0
 58:         49    3396136          0          0         PCI-MSI  eth1

 CPU0 and CPU1 are of the first CPU as far as I understand ; so
 this means as far as I understand that the second CPU (which has CPU3
and CPU4) does not handle
 interrupts of the arrived packets; Can I somehow change it so the second
 CPU will also handle network interrupts of receiving packets on the nic ?

Can I assign one CPU to  eth0 and the second CPU to eth1  ?

How it will help you?
Y can set smp-affinity mask for each irq in /proc/<irq-number>/
google for 'linux smp-affinity".

The subject in more details is discussed in:
http://linux-net.osdl.org/index.php/TODO#TCP
and thread
http://marc.theaimsgroup.com/?t=116695290600001&r=1&w=2, read from
bottom.


--
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
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