Hello John,
Thanks for the informative reply, do you know what Intel would mean by
advertising the NIC with "Performance — Two Queues (Tx & Rx) " then?
If i understand you correctly, are you confirming to me that only a Dual
port NIC will deliver different IRQs?
Alex
On 06/08/2013 11:44 PM, John R Pierce wrote:
> wait, the 82579 is just a PHY layer for the Intel 6 Series Express CPU
> chipset's built in MAC (p67, z68, hm67, etc chipsets for the Sandy
> Bridge family of desktop/mobile CPUs). That combination is also a
> 'entry level' desktop/workstation or 'mobile embedded' grade ethernet
> interface, not really a server grade interface at all. regardless, its
> a single device. single devices, regardless of how many queues they
> may happen to have, are not reentrant, and can not deal with multiple
> concurrent IRQ handlers poking at their registers at the same time.
> you might have more luck with something like this
> http://ark.intel.com/products/59062/Intel-Ethernet-Server-Adapter-I350-T2
> but even so, I doubt it will use multiple CPU cores at the same time,
> but it probably WILL significantly reduce the CPU overhead of dealing
> with high volume ethernet traffic.
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