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Latency view presents a page or transaction response time breakdown between Latency and Server Time. The latency (or network time) is a portion of the response time attributed to the network delays necessary for server responses to reach the client. 

It depends on several factors, such as the response size, network bandwidth, server, and client global and network positioning on the Internet. Latency view graph displays the following elements:

a) Latency area

b) Server Time area

c) Total response time = Server Time + Latency

d) User curve

In slow pages and transactions, the total response time breakdown helps to determine whether the slowness is caused by the server processing or by the network latency. Resolving each of these two bottlenecks entails very different performance engineering steps. To address high latency consider the following measures:

  • Decrease server response size by optimizing the application and/or using compression.
  • Reduce the number of network round-trips.
  • Increase network bandwidth.
  • Move the server geographically closer to the clients use CDN.
  • Use client caching.

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