Re: [E1000-devel] Measuring LLC misses for DCA

2016-10-15 Thread Michał Purzyński
Ignore me ;) I described one thing but implemeted something else. I had IRQ pinned to core 0, doing housekeeping and L3 cache trashing happened. With Core 0 - housekeeping Core 1 - IRQ Core 2 - leftovers of softIRQ, kernel side of AFP I have L3 misses 0.6% on Core 1 where packets are delivered.

[E1000-devel] Measuring LLC misses for DCA

2016-10-15 Thread Michał Purzyński
Hey, one more question to the already known (to some of you) tuning project. We can see excellent performance, findings how to achieve that will soon be published. There is one more little thing that keeps me up at night though ;) 2x E5-2697 v3, 2x X710 now, one per NUMA node. I use isolcpus kern