To measure latency, you have two different tool options: A virtual network, such as routing or filtering changes.VM properties, such as Accelerated Networking or size changes.A VM deployment method, such as deploying to an availability zone or proximity placement group (PPG).
Operating system (OS) or network stack software, including configuration changes.Compare the effects of changes in network latency after related changes are made to:.
Establish a benchmark for network latency between the deployed VMs. Latency measurements can be useful for the following scenarios: You can use this approach to measure network latency between two VMs or even between two physical computers. With this approach, you can send and receive packets in both directions and measure the round-trip time (RTT). Overviewīy using two VMs, one as sender and one as receiver, you create a two-way communications channel. That's because most of these tools employ the Internet Control Message Protocol (ICMP), which can be treated differently from application traffic and whose results might not apply to workloads that use TCP and UDP.įor accurate network latency testing of the protocols used by most applications, SockPerf (for Linux) and latte.exe (for Windows) produce the most relevant results. Other common connectivity tools, such as Ping, might measure latency, but their results might not represent the network traffic that's used in real workloads. These tools focus on the kind of network traffic that affects application performance (namely, Transmission Control Protocol and User Datagram Protocol traffic). Publicly available tools such as SockPerf (for Linux) and latte.exe (for Windows) can isolate and measure network latency while excluding other types of latency, such as application latency. To achieve the most accurate results, measure your Azure virtual machine (VM) network latency with a tool that's designed for the task.
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