Debadatta Mishra

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Purushottam Kulkarni14
Avi Kivity11
Anthony Liguori11
Uri Lublin11
Chris Mason8
8Purushottam Kulkarni
3Shashank Rachamalla
2Raju Rangaswami
2Cheng-Hsin Hsu
1Chenggang Yan

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Clouds + Games: A Multifaceted Approach
The computer game landscape is changing: people play games on multiple computing devices with heterogeneous form-factors, capability, and connectivity. Providing high playability on such devices concurrently is difficult. To enhance the gaming experience, designers could leverage abundant and elastic cloud resources, but current cloud platforms aren't… (More)
Share-o-meter: An empirical analysis of KSM based memory sharing in virtualized systems
Content based memory sharing in virtualized environments has proven to be a useful technique for over-commitment based placement of virtual machines. Kernel-based Virtual Machine (KVM) on Linux uses Kernel SamePage Merging (KSM) to identify and exploit sharing opportunities. In this paper, we present an analysis of page sharing across virtual machines by… (More)
Comparative Analysis of Page Cache Provisioning in Virtualized Environments
Efficient management of system memory plays a critical role in provisioning virtual machines, as it impacts levels of over-commitment and associated application performance. Typically, file accesses from a virtual machine traverse through different levels of page caches, which consume memory. Different configurations of page cache provisioning are possible,… (More)
All page sharing is equal, but some sharing is more equal than others Benchmarking of Kernel Samepage Merging and an Adaptive Page Sharing Technique
Content based memory sharing in virtualized environments has been proven to be a useful memory management technique. As part of this work, we are interested in studying the trade-off between extent of sharing opportunities (compared to actual sharing potential) that can be identified and the overheads for doing the same. Our work is based on Kernel Virtual… (More)
Vagabond: Dynamic Network Endpoint Reconfiguration in Virtualized Environments
One of the biggest challenges of virtualization today is to efficiently share and manage network devices among different virtual machines (VMs). Software-based network virtualization solutions like device emulation and split driver device models have advantages of resource sharing and fine grained hypervisor resource control. However, software based… (More)
Synergy: A Hypervisor Managed Holistic Caching System
Efficient system-wide memory management is an important challenge for over-commitment based hosting in virtualized systems. Due to the limitation of memory domains considered for sharing, current deduplication solutions simply cannot achieve system-wide deduplication. Popular memory management techniques like sharing and ballooning enable important memory… (More)
Catalyst: GPU-assisted rapid memory deduplication in virtualization environments
Content based page sharing techniques improve memory efficiency in virtualized systems by identifying and merging identical pages. Kernel Same-page Merging (KSM), a Linux kernel utility for page sharing, sequentially scans memory pages of virtual machines to deduplicate pages. Sequential scanning of pages has several undesirable side effects---wasted CPU… (More)
StepAhead: Rethinking Filesystem Namespace Translations
A hierarchical namespace is a common abstraction used for data organization within modern file systems. Fast translation of namespace objects to physical locations is necessary to carry out efficient file system operations. For reasons attributed to modularity, security, and to some extent legacy, namespace translations involves iterative translation of… (More)
Predict the Storm: A Simulation Model to Measure the Playability before the Game Development
Design and development of multi-player network games is a complex and involved process. Apart from standard software development complexity, the game designer has to carefully think about issues like playability, user experience and scalability aspects of the game during the design phase itself. Most of the existing methodologies to determine playability of… (More)
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