May 2018
Intermediate to advanced
256 pages
7h 6m
English
Content preview from OpenStack for Architects - Second Edition
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Considerations for performance-intensive workloads
The guidelines given earlier work well for development, web, or database workloads. Some workloads, particularly Network Function Virtualization (NFV) workloads, have very specific performance requirements that need to be addressed in the hardware selection process. A few improvements to the scheduling of instances have been added to the Nova compute service in order to enable these workloads.
The first improvement allows for passing through a PCI device directly from the hardware into the instance. In standard OpenStack Neutron networking, packets traverse a set of bridges between the instance's virtual interface and the actual network interface. The amount of overhead in this virtual networking ...
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