虚拟机与宿主机通信传输被限制到1G带宽

zp515630

设备环境：（宿主机&虚拟机window10、局域网交换机为2.5g，物理机3个网卡均是2.5,rt8125x2，i225x1）

BUG现象：

虚拟机win10访问物理机smb共享目录，最大传输速度只有1g带宽112mb/s

虚拟机均使用virtio，并且qemu-guest-agent补丁已安装。网卡协商速度100Gb

宿主机服务端->虚拟机客户端，测试结果
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-20.00 sec 956 MBytes 401 Mbits/sec sender
[ 4] 0.00-20.00 sec 956 MBytes 401 Mbits/sec receiver
[ 6] 0.00-20.00 sec 940 MBytes 394 Mbits/sec sender
[ 6] 0.00-20.00 sec 940 MBytes 394 Mbits/sec receiver
[ 8] 0.00-20.00 sec 954 MBytes 400 Mbits/sec sender
[ 8] 0.00-20.00 sec 954 MBytes 400 Mbits/sec receiver
[ 10] 0.00-20.00 sec 446 MBytes 187 Mbits/sec sender
[ 10] 0.00-20.00 sec 446 MBytes 187 Mbits/sec receiver
[ 12] 0.00-20.00 sec 953 MBytes 400 Mbits/sec sender
[ 12] 0.00-20.00 sec 953 MBytes 400 Mbits/sec receiver
[ 14] 0.00-20.00 sec 453 MBytes 190 Mbits/sec sender
[ 14] 0.00-20.00 sec 453 MBytes 190 Mbits/sec receiver
[ 16] 0.00-20.00 sec 366 MBytes 154 Mbits/sec sender
[ 16] 0.00-20.00 sec 366 MBytes 154 Mbits/sec receiver
[ 18] 0.00-20.00 sec 420 MBytes 176 Mbits/sec sender
[ 18] 0.00-20.00 sec 420 MBytes 176 Mbits/sec receiver
[SUM] 0.00-20.00 sec 5.36 GBytes 2.30 Gbits/sec sender
[SUM] 0.00-20.00 sec 5.36 GBytes 2.30 Gbits/sec receiver

iperf Done.

宿主机客户端，虚拟机服务端测试结果
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 0 sender
[ 5] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 7] 0.00-20.00 sec 283 MBytes 119 Mbits/sec 0 sender
[ 7] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 9] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 0 sender
[ 9] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 11] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 0 sender
[ 11] 0.00-20.00 sec 280 MBytes 118 Mbits/sec receiver
[ 13] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 0 sender
[ 13] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 15] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 0 sender
[ 15] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 17] 0.00-20.00 sec 282 MBytes 118 Mbits/sec 1 sender
[ 17] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[ 19] 0.00-20.00 sec 283 MBytes 119 Mbits/sec 0 sender
[ 19] 0.00-20.00 sec 281 MBytes 118 Mbits/sec receiver
[SUM] 0.00-20.00 sec 2.21 GBytes 947 Mbits/sec 1 sender
[SUM] 0.00-20.00 sec 2.19 GBytes 942 Mbits/sec receiver

iperf Done.

出现频率：必现

联系方式：1群-鹰

日志文件：无

zp515630

问了ai
1.driver name='vhost' queues='4'没有配置（实测配置后未生效）

2.vhost-net状态未启用（已切换系统，未验证）

隔壁nas系统使用Linux Bridge网桥。虚拟机协商10g,物理网卡2.5g。测试能达到10g带宽的smb，iscisi传输速度。期待飞牛也能完善此功能。虚拟机的重度用户

飞牛技术同学

已收到反馈，这个情况我们记录一下