May2012

The IaaS Cloud Performance Management Problem

The IaaS Cloud Performance Management Problem will continue to be one of two major factors impeding the adoption of public cloud services (multi-tenant security being the other one). Inferring performance from resource utilization metrics does not work in a simple single tenant virtualized environment (vSphere in your data center). It is worse than useless in muti-tenant public cloud environments that are build up upon a virtualization platform. The only known fix for this issue is for the cloud vendors to embrace end-to-end infrastructure latency as the quality of service metric and to surface this metric on a per tenant and per image basis to their customers.