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Cloud performance management is the practice of assessing various metrics and benchmarks for cloud systems. It is used to determine how well a cloud system is functioning and what improvements can be made to the system.
In general, performance management examines the actual performance of hardware or a virtual system. It looks at things like system latency, signaling, CPU use, memory use, workload, etc. Applying this to the cloud means looking at how data moves from a client’s office or other location across the Web and into a vendor's cloud storage systems. It also means looking at how that information is triaged and retrieved.
There is a lot involved in cloud performance management that helps businesses assess how well systems are working for them. Some aspects of these may be mentioned in a service level agreement where the provider shows the client specifically what they can expect from a service. For example, along with uptime and downtime provisions that specify how frequently a service will be available, there may be provisions on processing power and memory, operational wait times, latency or other metrics that help IT professionals do cloud performance management and quantify what services are providing, while looking at how to improve or enhance operations.