Hank Liu <hank.tz...@gmail.com> wrote:
*From:* Hank Liu [mailto:hank.tz...@gmail.com] *Sent:* Wednesday, September 07, 2016 10:20 AM *To:* Skidmore, Donald C <donald.c.skidm...@intel.com> *Cc:* e1000-devel@lists.sourceforge.net *Subject:* Re: [E1000-devel] Intel 82599 AXX10GBNIAIOM cards for 10G SFPs UDP performance issueThanks for quick response and helping. I guess I didn't make it clear is that the application (receiver, sender) open 240 connections each connection has 34 Mbps traffic.
You say that there are 240 connections, but how many threads is your app using? One per connection? What does the cpu utilization look like on the receiving end?
Also, the current ATR implementation does not support UDP, so you are probably better off not pinning the app threads at all and trusting that the scheduler will migrate them to the cpu that is getting their packets via RSS. You should still set the affinity of the interrupts in that case. The default number of queues should be fine.
-- Mark Rustad, Networking Division, Intel Corporation
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