Linux kernel resource allocation in virtualized environments

• Autores: Matthew Sacks
• Localización: ;login:: the magazine of USENIX & SAGE, ISSN 1044-6397, Vol. 33, Nº. 2 (ABR), 2008, págs. 34-37
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The behavior of the Linux kernel and its resource allocation methods are an art and science, more the former than the latter. When working with Linux in a virtualized enviroment, the complexities of the Linux kernel's resource allocation algorithms increase. New performance issues may arise and proper functionality can come to a halt -especially on overutilized systems. The Linux kernel behaves differently on a virtualized platform in comparison to bare-metal. Why Linux behaves differently on a virtual platform and how to address performance and stability issues when it starts to malfunction or degrade in performance relate, but do not depend on, the enviroment. The solution presented here is not that of changing the enviroment but, rather, that of making adjustements to the Linux kernel to coalesce with the hypervisor .