bfb86586_Test___Test_Your_ISP_Bandwidth__Why_It_Matters
[What's Measured] Latency [What Is It?] The time it takes for a packet of data to make a round trip between two designated points. [How It's Measured] Measured in ms (milliseconds) as the average time of total data packets attempted. [Why It Matters] 
High latency will be noticed on voice calls through delays in conversation and periods of silence. In addition, web pages may load more slowly.
MegaPath Bandwidth Test | Test Your ISP Bandwidth
Why It Matters