|
|
|
## Test configuration
|
|
|
|
|
|
|
|
Performance testing was done on a server with following specifications:
|
|
|
|
|
|
|
|
* **CPU**: Intel Xeon E5-2620@2.00 GHz
|
|
|
|
* **RAM**: 32 GB DDR3@1600 Mhz
|
|
|
|
* **OS**: Debian, linux kernel 5.4.0
|
|
|
|
* **NIC**: Intel X-520-2, 2x 10 Gb
|
|
|
|
|
|
|
|
DNS traffic to this server was generated and sent by Spirent TestCenter SPT-2000A through a 10 Gbps line.
|
|
|
|
All DNS traffic was sent over UDP with 33% of queries and responses containing EDNS record.
|
|
|
|
|
|
|
|
DNS Probe was run with default Sysrepo configuration with only `export-format` changed to `cdns` when measuring C-DNS performance and `coremask` changed to correspond with the number of packet processing threads shown in the table in section [Test results](#test-results).
|
|
|
|
|
|
|
|
## Test results
|
|
|
|
|
|
|
|
The following table contains results of the performance tests for DNS Probe. DNS Probe was run in four
|
|
|
|
different configurations depending on the packet processing backend and export format used.
|
|
|
|
|
|
|
|
| Probe configuration (pkts/s) / Packet processing threads | 1 | 2 | 4 |
|
|
|
|
|----------------------------------------------------------|---|---|---|
|
|
|
|
| DPDK - Parquet | 718 000 | 1 441 000 | 2 647 000 |
|
|
|
|
| DPDK - C-DNS | 1 420 000 | 2 739 000 | 5 176 000 |
|
|
|
|
| AF_PACKET - Parquet | 487 000 | 780 000 | 1 350 000 |
|
|
|
|
| AF_PACKET - C-DNS | 805 000 | 1 242 000 | 2 017 000 |
|
|
|
|
|
|
|
|
The following table contains the same measurements as the table above, only with the numbers converted
|
|
|
|
to Gbps.
|
|
|
|
|
|
|
|
| Probe configuration (Gbps) / Packet processing threads | 1 | 2 | 4 |
|
|
|
|
|--------------------------------------------------------|---|---|---|
|
|
|
|
| DPDK - Parquet | 1,20 | 2,42 | 4,44 |
|
|
|
|
| DPDK - C-DNS | 2,38 | 4,60 | 8,69 |
|
|
|
|
| AF_PACKET - Parquet | 0,81 | 1,31 | 2,26 |
|
|
|
|
| AF_PACKET - C-DNS | 1,35 | 2,00 | 3,39 | |
|
|
\ No newline at end of file |
