Single-core CPU performance cannot meet the requirement of processing NIC interruptions incurred with the increase of network I/O bandwidth. NIC multi-queue enables multiple CPUs to process ECS NIC interruptions, thereby improving network PPS and I/O performance.

1. 查看系统是否支持多队列网卡

sysctl命令控制

# 使用该命令直接关闭，值改为1时开启
sysctl kernel.nmi_watchdog=0
# 在/etc/sysctl.conf中增加如下内容，开机自动关闭
kernel.nmi_watchdog = 0