Comparing D27401 (Diff 80654) impact on forwarding performance:
- Intel Xeon E5-2697Av4 (16Cores, 32 threads)
- RX NIC (heavy work): Chelsio T580-LP-CR (QSFP+ 40GBASE-SR4)
- TX NIC: Mellanox_ConnectX-4
- Increase number of Chelsio RX & TX queues to 32
- FreeBSD 13-head r368606
- BUG: 200 flows only of smallest UDP packets
- Traffic load at 42.49Mpps
- 2 static routes
- LRO/TSO disabled
- harvest.mask=351
- ICMP redirect disabled
IPv4:
x r368606: inet packets-per-second forwarded
+ r368606 with D27401 (Diff 80677): inet packets-per-second forwarded
+--------------------------------------------------------------------------+
|+ + + + + x x x x x|
| |_____A_____| |
||______M_A________| |
+--------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 31964087 31979331 31971433 31971814 5761.5606
+ 5 31911429 31932540 31918297 31920122 8490.4582
Difference at 95.0% confidence
-51692.4 +/- 10581.7
-0.161681% +/- 0.03308%
(Student's t, pooled s = 7255.46)
=> No difference here
IPv6:
x r368606: inet6 packets-per-second forwarded
+ r368606 with D27401 (Diff 80677): inet6 packets-per-second forwarded
+--------------------------------------------------------------------------+
|x + xx x + + x + +|
| |_______________________A_M_____________________| |
| |__________M___A_______________| |
+--------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 31080364 31088281 31085165 31084898 2855.3236
+ 5 31084717 31089077 31086549 31087097 1851.0781
No difference proven at 95.0% confidence
=> No difference here
Flamegraphs:
