We've found in preliminary testing that the PCIe bus (1 lane of PCIe Gen 1) was 
the real bottleneck for us.

"Enable support" in this case means you get to do a lot of modifications to the 
driver for, perhaps, not much gain. I would suggest it would be quicker to find 
a newer part with multiqueue support in the igb driver, but I'm assuming you 
have time constraints looking at your email address.

Todd Fujinaka
Software Application Engineer
Networking Division (ND)
Intel Corporation
[email protected]
(503) 712-4565


-----Original Message-----
From: Sharva Pathak [mailto:[email protected]] 
Sent: Thursday, January 16, 2014 10:41 PM
To: [email protected]
Subject: [E1000-devel] enabling multi-queue for 82574L

Hi,

I was trying to enable the multi queue support for a 82574L Gigabit Network 
adapter on my servers. I can see that most of the bottom half of interrupt 
processing is happening at one core, and this is turning out to be the 
bottleneck. The specification sheet of the 82574L adapter says that it supports 
two Rx and Tx queues. Can you guide me as to how I can enable that multi-queue 
support for 82574L.

Thanks,
Sharva


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