红帽全球峰会6.3.3. pmD 在 loadtest 下具有 50% 的 mpps 容量
以下示例显示了一个系统，其中 core_ids 为 dpdk0 固定于 dpdk0 的 PMD，其负载测试流过 dpdk0，发送 6.4 Mpps（大约大约 12.85 Mpps）：
[root@overcloud-compute-0 ~]# ovs-appctl dpif-netdev/pmd-stats-clear && sleep 10 && ovs-appctl dpif-netdev/pmd-stats-show |
egrep 'core_id (2|4|22|24):' -A9
pmd thread numa_id 0 core_id 22:
emc hits:17461158
megaflow hits:0
avg. subtable lookups per hit:0.00
miss:0
lost:0
polling cycles:4948219259 (25.81%)
processing cycles:14220835107 (74.19%)
avg cycles per packet: 1097.81 (19169054366/17461158)
avg processing cycles per packet: 814.43 (14220835107/17461158)
--
pmd thread numa_id 0 core_id 2:
emc hits:14874381
megaflow hits:0
avg. subtable lookups per hit:0.00
miss:0
lost:0
polling cycles:5460724802 (29.10%)
processing cycles:13305794333 (70.90%)
avg cycles per packet: 1261.67 (18766519135/14874381)
avg processing cycles per packet: 894.54 (13305794333/14874381)当 pps 为接口的最大值为一半时，您可以看到处理周期与轮询周期的比率较低（大约 70% 的处理周期）：
polling cycles:5460724802 (29.10%)
processing cycles:13305794333 (70.90%)
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