![]() ![]() Check the number of virtual machines assigned to each physical NIC. If packets are not being dropped and the data receive rate is slow, the host is probably lacking the CPU resources required to handle the load. To check the network latency, use the VMware AppSpeed performance monitoring application or a third-party application. Note: In some instances, large packets might result in a high network latency. When network packets are small, more packets are transferred but the network speed is slower because more CPU is required to process the data. When the packet size is large, fewer packets are transferred, which reduces the amount of CPU required to process the data. In general, the larger the network packets, the faster the network speed. If packets are not being dropped, check the size of the network packets and the data receive and transfer rates. If packets are being dropped, adjust the virtual machine shares. To determine whether packets are being dropped, use esxtop or the advanced performance charts to examine the droppedTx and droppedRx network counter values. Dropped network packets indicate a bottleneck in the network. Network performance depends on the application workload and network configuration. The chart also displays the aggregated data transmit rate of all physical NICs. This represents the bandwidth of the network. Rate at which data is transmitted across the top ten physical NIC instances on the host. The chart also displays the aggregated data receive rate of all physical NICs. Rate at which data is received across the top ten physical NIC instances on the host. The Network Data Transmitted/Received chart for hosts is located in the Home view of the Host Performance tab. The Network Rate chart displays network bandwidth on a host.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |