+---------------------------------+---------------+---------------+---------------+---------------+
| Test Case                       |         20.11 |         21.02 |         21.08 |          Diff |
+---------------------------------+---------------+---------------+---------------+---------------+
| imix-4t2c-ethip4-ip4base-l3fwd  |  16.3 +-  0.0 | 14.97 +- 0.01 |  15.0 +- 0.01 | +0.26 +- 0.12 |
| imix-4t2c-eth-l2xcbase-testpmd  |  16.3 +-  0.0 | 14.97 +- 0.01 | 14.98 +- 0.02 | +0.11 +- 0.17 |
| 1518b-4t2c-eth-l2xcbase-testpmd |  3.96 +-  0.0 |  3.98 +-  0.0 |  3.98 +-  0.0 |  +0.0 +-  0.0 |
| 1518b-4t2c-ethip4-ip4base-l3fwd |  3.96 +-  0.0 |  3.98 +-  0.0 |  3.98 +-  0.0 |  +0.0 +-  0.0 |
| 64b-4t2c-ethip4-ip4base-l3fwd   | 36.78 +- 0.04 | 36.81 +- 0.06 | 36.33 +- 0.15 |  -1.3 +- 0.43 |
| 64b-4t2c-eth-l2xcbase-testpmd   | 34.21 +- 0.13 | 33.88 +- 0.09 | 31.03 +-  0.1 | -8.41 +-  0.4 |
+---------------------------------+---------------+---------------+---------------+---------------+

20.11, 21.02, 21.08 - DPDK versions tested.
Diff - difference between 21.02 and 21.08 DPDK version.