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Non-volatile memory (NVM) provides persistence with dynamic random access memory (DRAM)-like performance. This paper presents SwapX, an NVM-based hierarchical swapping framework for guest operating systems (OSs) in virtual machines (VMs). SwapX works in a cluster connected to a NVM pool, where each server is equipped with both NVM and DRAM to provide hierarchical swapping service for VMs. SwapX: 1)...
On virtualization platforms, peak memory demand caused by hotspot applications often triggers page swapping in guest OS, causing performance degradation inside and outside of this virtual machine (VM). Even though host holds sufficient memory pages, guest OS is unable to utilize free pages in host directly due to the semantic gap between virtual machine monitor (VMM) and guest operating system (OS)...
In IaaS cloud environments, peak memory demand caused by hotspot applications in Virtual Machine (VM) often results in performance degradation within and outside of this VM. Some solutions such as host swapping and ballooning for memory consolidation and overcommitment have been proposed. These solutions, however, have no help for addressing guest swapping issues inside VM. Even though host holds...
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