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KVM - Scaling To Infinity and Beyond

Jes Sorensen, SGI

Virtualization has taken a strong foothold in the Linux space, in particular in the enterprise market and the virtual server hosting space. Until now, virtualization has primarily been used on smaller PCs, however with Nehalem larger core counts and real NUMA is a reality, even in smaller systems. This talk will discuss the work being done to break the current limits of KVM and QEMU, in order to support much larger guests in terms of core counts, NUMA handling and number of I/O devices; ideally to run guests with hundreds of virtual CPUs. This talk will also look at how making the hypervisor more NUMA aware impacts migration and dynamic resource management. In addition, it will look at new usage models and users of Virtualization, such as in the high performance computing space. People attending this talk are expected to have good kernel and system knowledge.