Hello, My first run through with poring. :)
I’ve compiled the zc variant of pfring in an attempt to get linerate between two of the ports which are looped together. The NIC is a 6 port 82599 based one. root@pgen:/home/jlixfeld/PF_RING/drivers/intel/ixgbe/ixgbe-4.1.5-zc/src# ./load_driver.sh irqbalance: no process found Configuring eth6 IFACE CORE MASK -> FILE ======================= eth6 0 1 -> /proc/irq/87/smp_affinity Configuring eth7 IFACE CORE MASK -> FILE ======================= eth7 0 1 -> /proc/irq/89/smp_affinity Configuring eth2 IFACE CORE MASK -> FILE ======================= eth2 0 1 -> /proc/irq/96/smp_affinity eth2 1 2 -> /proc/irq/97/smp_affinity eth2 2 4 -> /proc/irq/98/smp_affinity eth2 3 8 -> /proc/irq/99/smp_affinity eth2 4 10 -> /proc/irq/100/smp_affinity eth2 5 20 -> /proc/irq/101/smp_affinity eth2 6 40 -> /proc/irq/102/smp_affinity eth2 7 80 -> /proc/irq/103/smp_affinity eth2 8 100 -> /proc/irq/104/smp_affinity eth2 9 200 -> /proc/irq/105/smp_affinity eth2 10 400 -> /proc/irq/106/smp_affinity eth2 11 800 -> /proc/irq/107/smp_affinity Configuring eth3 IFACE CORE MASK -> FILE ======================= eth3 0 1 -> /proc/irq/109/smp_affinity eth3 1 2 -> /proc/irq/110/smp_affinity eth3 2 4 -> /proc/irq/111/smp_affinity eth3 3 8 -> /proc/irq/112/smp_affinity eth3 4 10 -> /proc/irq/113/smp_affinity eth3 5 20 -> /proc/irq/114/smp_affinity eth3 6 40 -> /proc/irq/115/smp_affinity eth3 7 80 -> /proc/irq/116/smp_affinity eth3 8 100 -> /proc/irq/117/smp_affinity eth3 9 200 -> /proc/irq/118/smp_affinity eth3 10 400 -> /proc/irq/119/smp_affinity eth3 11 800 -> /proc/irq/120/smp_affinity Configuring eth4 IFACE CORE MASK -> FILE ======================= eth4 0 1 -> /proc/irq/91/smp_affinity Configuring eth5 IFACE CORE MASK -> FILE ======================= eth5 0 1 -> /proc/irq/93/smp_affinity root@pgen:/home/jlixfeld/PF_RING/drivers/intel/ixgbe/ixgbe-4.1.5-zc/src# My issue is that I only get 10Gbps in one direction. If zc:eth7 is the sender, zc:eth2 only sees Rx @ 0.54Gbps: root@pgen:/home/jlixfeld/PF_RING/userland/examples_zc# ./zsend -i zc:eth7 -c 2 ========================= Absolute Stats: 111'707'057 pkts - 9'383'392'788 bytes Actual Stats: 13'983'520.42 pps - 9.40 Gbps [1133946996 bytes / 1.0 sec] ========================= root@pgen:/home/jlixfeld/PF_RING/userland/examples_zc# ./zcount -i zc:eth2 -c 1 ========================= Absolute Stats: 5'699'096 pkts (33'135'445 drops) - 478'724'064 bytes Actual Stats: 802'982.00 pps (4'629'316.93 drops) - 0.54 Gbps ========================= But, if zc:eth2 is the sender, zc:eth7 sees rates more in-line with what zc:eth2 is sending. root@pgen:/home/jlixfeld/PF_RING/userland/examples_zc# ./zsend -i zc:eth2 -c 2 ========================= Absolute Stats: 28'285'274 pkts - 2'375'963'016 bytes Actual Stats: 14'114'355.24 pps - 9.48 Gbps [1185800280 bytes / 1.0 sec] ========================= root@pgen:/home/jlixfeld/PF_RING/userland/examples_zc# ./zcount -i zc:eth7 -c 1 ========================= Absolute Stats: 28'007'460 pkts (0 drops) - 2'352'626'640 bytes Actual Stats: 14'044'642.54 pps (0.00 drops) - 9.44 Gbps ========================= I’ve done some reading, but I haven’t found anything that has pointed me towards a possible reason why this is happening. I’m wondering if anyone has any thoughts? Thanks!
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